PD1006008J TIEDOWNS LANYARDS AND TETHERS_4-09-24.pdf

NOT MEASUREMENT

SENSITIVE

PD1006008J

09 APRIL 2024

SUPERSEDING

PD1006008H

21 JULY 2023

Comments, suggestions, or questions on this document should be addressed to Product Manager (PdM) Air Warrior, SFAE-SDR-AW, 6726 Odyssey Drive NW, Huntsville, AL 35806.

DISTRIBUTION STATEMENT D: Distribution authorized to the Department of Defense and DoD Contractors only for administrative and operational use, 10 Jan 2023. Other requests shall be referred to: Product Manager (PM) Air Warrior (AW), SFAE-SDR-AW, 6726 Odyssey Drive NW, Huntsville, AL 35806.

PURCHASE DESCRIPTION

TIE-DOWNS, LANYARDS, AND TETHERS FOR AIR WARRIOR

Part Name Foliage Green

(FG) P/N

Generic Color P/N

SAFETY RESTRAINT TETHER 1005990-1 1006033-N-1

QUICK-RELEASE EXTENSION TETHER ASSY N/A 1050904-N

CREW SPECIFIC PARTS 1005850-1 N/A

CREW SPECIFIC KIT N/A 1005850-N-2

EXTENSION TETHER 1005851-1 N/A

EXTENSION TETHER N/A 1081554-N-1

EXTENSION TETHER, 2-FT N/A 1081572-N-1

EXTENSION TETHER, 3-FT N/A 1081572-N-2

RETAINING LOOP ABRASION COVER 1005852-1 1006036-N

PERSONAL RESTRAINT TETHER

W/SWIVEL (REGULAR) 1005942-3 N/A

PERSONAL RESTRAINT TETHER

W/SWIVEL (LONG MODIFIED) 1005942-3-L N/A

PERSONAL RESTRAINT TETHER

W/SWIVEL (SHORT MODIFIED) 1005942-3-S N/A

QUICK RELEASE EXTENSION TETHER TYPE 1 N/A 1050902-N-1

QUICK RELEASE EXTENSION TETHER TYPE 2 N/A 1050902-N-3

PERSONAL RESTRAINT TETHER

W/SWIVEL (LONG) N/A 1050903-N-1

PERSONAL RESTRAINT TETHER

W/SWIVEL (SHORT) N/A 1050903-N-3

EXTRACTION STRAP 1005953-1 1006032-N-1

SNAP AND LOOP STRAP 1005978-1 N/A

DOUBLE LOOP STRAP 1005978-3 N/A

SHACKLE STRAP 1005979-1 N/A

CARGO TIE-DOWN STRAP 1005980-1 N/A

PERSONAL RESTRAINT, TETHERS,

ATTENUATING, SHORT N/A 1081553-N-1

PERSONAL RESTRAINT, TETHERS,

ATTENUATING, LONG N/A 1081553-N-3

QUICK RELEASE TETHER N/A 1081555-N-1

This document is approved for use by all Departments and Agencies of the Department of Defense (DOD). Recommended improvements, simplifications, or reductions in paperwork are encouraged and should be directed to the preparing activity.

1. Scope This document defines the production requirements for Tie-Downs, Lanyards, and Tethers used with the Air Warrior system. It covers components in both Foliage Green (FG) and Generic Color. The FG and Generic Color components are identical to each other in form, fit and function. Material color is the only difference.

The Tie-Downs, Lanyards, and Tethers consist of the Safety Restraint Tether (SRT), P/N 1005990-1 and 1006033-N-1; Quick-Release Extension Tether (QRET) Assembly, P/N 1050904-N (where N is a Generic Color indicator which is substituted with a numeral designation for a specific camouflage family color or pattern (see 6.2)); Crew Specific Parts (CSP), P/N 1005850-1 and 1005850-N-2; Extension Tether (ET), P/N 1005851-1 and 1081554- N-1; Extension Tether (ET) 2-Foot, PN 1081572-N-1, and Extension Tether (ET) 3-Foot, PN 1081572-N-2, Retaining Loop Abrasion Cover, P/N 1005852-1 (FG) and 1006036-N-1; Personal Restraint Tether w/Swivel (PRTS) (Regular), P/N 1005942-3; PRTS (Long Modified), P/N 1005942-3-L; PRTS (Short modified), P/N 1005942-3-S; QRET (Type 1), PN 1050902-N-1;

QRET (Type 2), PN 1050902-N-3 (Note: Type 2 QRET is qualified but not currently released for production or fielding); PRTS (Long), P/N 1050903-N-1; PRTS (Short), P/N 1050903-N-3;

Extraction Strap (ES), P/N 1005953-1and 1006032-N-1; Quick Release Tether, P/N 1051555-N- 1; Personal Restraint Tether, Attenuating (PRTA) (Short), P/N 1081553-N-1 and (Long), P/N 1081553-N-3; Snap and Loop Strap, P/N 1005978-1; Double Loop Strap, PN 1005978-3;

Shackle Strap, PN 1005979-1; Cargo Tie-Down Strap, PN 1005980-1, used by helicopter aircrew for crew extraction, non-rated crew restraint, Go Bag tie-down to the airframe, and Go Bag quick release.

The SRT is a tether that connects from helicopter attachment points to the front of the Primary Survival Gear Carrier (PSGC) for aircrew external restraint or self-extraction.

The Quick-Release Extension Tether (QRET) Assembly (see Figure 1) connects from the PSGC to the Personal Restraint Tether w/Swivel (PRTS) (Long Modified, Short Modified, Long and Short only) for crew retention. The QRET Assembly consists of a Quick Release Extension Tether (QRET), a Retaining Loop Abrasion Cover (RLAC) designed to reduce wear and abrasion on the PSGC’s aft retaining loop, two locking carabiners and a QRET Handle Cover.

This tether assembly is NOT compatible with the PRTS (Regular).

The Quick Release Tether (QRT) connects from the Aircrew Combat Equipment (ACE) Vest/Harness to the Personal Restraint Tether, Attenuating (PRTA) (Long and Short) for crew retention. The QRT assembly consists of a Handle Cover and QRT subassembly.

The -1 CSP includes a tether assembly that connects from the PSGC to the helicopter crew retention harness. The -1 CSP consists of an extension tether (ET) and an RLAC. The ET includes a locking carabiner attached at one end with the “V” ring at the other end of the webbing. This assembly is ONLY compatible with the PRTS (Regular). The -N-2 Crew Specific Kit (CSK) includes a tether assembly that connects from the ACE Vest/Harness to the helicopter crew retention harness. The -N-2 CSK includes a QRT, ET, and a retention carabiner (see Figure 2). The ET is two feet long for general operations with two alternatives and is available in a three-foot length for Medic missions.

The PRTS (Regular) is a tether that connects from the helicopter cabin anchorage point to the crewmember’s Extension Tether or survival vest. The PRTS (Regular) consists of a self-locking swivel hook, webbing, adjuster, and quick-fit ejector snap. NOTE: The PRTS (Regular) is no longer authorized for new procurements and should not be used with the QRET or QRT.

The PRTS (Long Modified, Short Modified, Long and Short) are each a tether for connection from the helicopter cabin anchorage point to the crewmember’s QRET Assembly. The PRTS (Long Modified, Short Modified, Long and Short) each consists of a self-locking swivel hook, webbing, adjuster, and parachute harness D-ring.

The PRTAs (Long and Short) are each a tether for connection from the helicopter cabin anchorage point to the crewmember’s QRT Assembly. The PRTAs (Long and Short) each consist of a self-locking swivel hook, webbing, load attenuation component, adjuster, and parachute harness D-ring.

The ES is a tether that connects from the helicopter hoist to the front lifting straps on the PSGC or to the front hoist strap on the ACE Vest/Harness for extraction of aircrew.

The Snap and Loop Strap is not currently fielded.

The Cargo Tie-Down Strap, Shackle Strap, and Double Loop Strap are used with the SKRAM.

Different combinations of these straps are used depending on the airframe and attachment location of the SKRAM. The Cargo Tie-Down Strap is made from the Base Subassembly, Ring Subassembly, and three Non-Locking Carabiners (see Figure 3). The Shackle Strap is laced into the Go Bag and is used to secure the Double Loop Strap. The Double Loop Strap is used in conjunction with the Shackle Strap to secure SKRAM components in the cabin of the UH-60 and in the aft electronics bay of the OH-58D. The Shackle Strap and Double Loop Strap combination is used to secure the Hydration Carrier in the AH-64. The Cargo Tie-Down Strap is used to secure all SKRAM components in the CH-47.

Figure 1: Quick-Release Extension Tether Assembly Component List

Figure 2: Crew Specific Kit Component List

Crew Specific Kit 1005850-N-2

Quick Release Tether 1081555-N-1

Extension Tether 1081554-N-1

Alternate: Extension Tether, 2-Foot 1081572-N-1

Retention Carabiner 1050905-5

Figure 3: Cargo Tie-Down Strap Component List

2. Applicable Documents

2.1. General

The documents listed in this section are specified in sections 3 and 4 of this document. This section does not include documents cited in other sections of this document or recommend for additional information. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this document, whether or not they are listed.

2.2. Government Documents

2.2.1. Specifications, Standards and Handbooks

The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation.

FEDERAL STANDARDS

FED-STD-595C/34160 Colors Used in Government Procurement/ Foliage

Green

COMMERCIAL ITEM DESCRIPTIONS

A-A-59826 Thread, Nylon

DEPARTMENT OF DEFENSE SPECFICATIONS

MIL-DTL-32075 Label: For Clothing, Equipage, and Tentage, (General Use)

Cargo Tie-Down Strap

PN 1005980-1

Base Subassembly

PN 1005980-17

Ring Subassembly

PN 1005980-13

Non-Locking Carabiner

PN 1005974-1

QTY 3

Cargo Tie-Down Strap

PN 1005980-1

Base Subassembly

PN 1005980-17

Ring Subassembly

PN 1005980-13

Non-Locking Carabiner

PN 1005974-1

QTY 3

2.2.2. Other Government Documents, Drawings and Publications

DRAWINGS

UCP Drawing No.

Generic Color Drawing No.

Drawing Name

1005827 N/A Strap End Keeper 1005843 N/A Bead, Tactile 1005850 1005850 Crew Specific Parts 1005851 N/A Extension Tether 1005852 N/A Retaining Loop Abrasion Cover N/A 1005938 Electrostatic Decay Test Method 1005942 1050903 Personal Restraint Tether (PRT) w/Swivel 1005953 1006032 Extraction Strap 1005974 N/A Carabiner, Non-Locking 1005975 N/A Fixed Bail Snap Shackle 1005978 N/A Loop Strap 1005979 N/A Shackle Strap 1005980 N/A Cargo Tie-Down Strap 1005990 1006033 Safety Restraint Tether N/A 1006036 Retaining Loop Abrasion Cover N/A 1050902 Quick Release Extension Tether N/A 1050904 Quick-Release Extension Tether Assembly N/A 1050905 Carabiners, Insertion & Retention N/A 1050906 QRET Handle Cover N/A 1050907 Cut Parts, QRET Handle Cover N/A 1050955 Component Materials and Colors N/A 1050956 Hook, Self-Locking Swivel N/A 1050961 Label, PRT w/Swivel N/A 1051019 Labels, Identification N/A 1081553 Personal Restraint Tethers, Attenuating, Short and

Long N/A 1081554 Extension Tether N/A 1081572 Extension Tether N/A 1081555 Quick Release Tether

(Copies of drawings, publications, and other Government documents required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.)

OTHER PUBLICATIONS

2.3. Non-Government Publications

The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation.

AEROSPACE INDUSTRIES ASSOCATION OF AMERICA (AIA)

NASM27980 Fasteners, Snap, Style 2 (Regular Wire Spring Clamp Type)

NASM27983 Fasteners, Snap, Style 4 (Three Way Locking Type)

(Copies of these documents are available from the Aerospace Industries Association of America – 1000 Wilson Boulevard, Suite 1700 Arlington, VA 22209, or online at www.aia-aerospace.org.)

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI/ASQ Z1.4-2018 American National Standard Sampling Procedures and Tables for Inspection by Attributes

(Copies of these documents are available from the American Society for Quality (ASQ) – 600 North Plankinton Ave, Milwaukee, WI 53203, or online at www.asq.org.)

ASTM INTERNATIONAL

ASTM D 6193 Standard Practices for Stitches and Seams ASTM D 76 Standard Specification for Tensile Testing

Machines for Textiles (Copies of these documents are available from the ASTM International – 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428, or online at www.astm.org.)

PARACHUTE INDUSTRY ASSOCIATION

PIA-W-5664 Webbing, Textile, Elastic (Copies of these documents are available from the Parachute Industry Association – 3833 West Oakton Street, Skokie, IL 60076, or online at www.pia.com.)

2.4. Order of Precedence

Unless otherwise noted herein or in the contract, in the event of conflicts between the text of this document and the references cited herein, the drawings take precedence, followed by the text of this document, and then the specifications and standards. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. Requirements

3.1. Classification of Inspection and Test

When specified in the contract or order (see 6.2), sample(s) shall be subject to first article inspection and test (see 3.1.1) and conformance inspection and test (see 3.1.2).

3.1.1. First Article Inspection and Test

When specified in the contract or order, sample(s), representing full production quality, shall be subjected to first article inspection and test in accordance with (IAW) 4.1.1.

3.1.2. Conformance Inspection and Test

Sample(s) representing full production quality shall be subjected to conformance inspection and test IAW 4.1.2.

3.1.2.1. Classification of Defects

Defects identified during conformance inspection and test shall be classified and assigned a defect code (see Table IV).

3.2. Materials and Components

Material and components shall conform to applicable specifications, standards, drawings, and documents required herein. The FR Textured Cloth, 1050955-70, shall meet the Electrostatic Decay requirements IAW drawing 1005938.

3.3. Design

3.3.1. Part Numbers

The end item part number shall be as described in Table I. When N is contained within the part number, it shall be substituted with a numeric designation for specific camouflage family color or pattern (see 6.2).

3.3.2. Tie-Downs, Lanyards and Tethers

3.3.2.1. The Tie-Downs, Lanyards and Tethers consist of the items shown in Table I and shall be attached and packaged together as specified in Table 1 notes (6.1).

3.3.2.2. The Quick-Release Extension Tether Assembly contains the following assemblies: Quick Release Extension Tether (QRET) Type 1, P/N 1050902-N-1; Retaining Loop Abrasion Cover (RLAC) P/N 1006036-N; two Retention Carabiners, P/N 1050905-1, -2, or -3;

and QRET Handle Cover, P/N 1050906-N [note: this item is controlled by PD 1006006]. This tether assembly is NOT compatible with the PRTS (Regular), P/N 1005942-3.

3.3.2.3. The Crew Specific Parts, P/N 1005850-1 contains the following assemblies:

Extension Tether, P/N 1005851-1 and Retaining Loop Abrasion Cover, P/N 1005852-1. The Crew Specific Kit, P/N 1005850-N-2 contains the following assemblies: Quick Release Tether, P/N 1081555-N-1, Extension Tether, P/N 1081554-N-1 with alternates Extension Tether, 2-Foot, P/N 1081572-N-1 and Extension Tether, 3-Foot P/N 1081572-N-2, and Retention Carabiner, P/N 1050905-5.

3.3.2.4. The Double Loop Strap contains a Coiled -Spring Snap Hook, P/N PIA-PS22043- 1.

3.3.2.5. The Shackle Strap contains a Fixed Bail Snap Shackle, P/N 1005975-1.

3.3.2.6. The Cargo Tie-Down Strap contains the following assemblies: Latch Subassembly, P/N 1005980-11; Ring Subassembly, P/N 1005980-13; Anchor Strap Subassembly, P/N 1005980-15; and Base Subassembly, P/N 1005980-17. The Cargo Tie-Down Strap contains the following hardware components: Rectangular Ring, P/N 1254, CAGE 7M835;

Adjuster Safety Shoulder Harness, P/N MS22007-2; Link, Lap Safety Belt 1 ¾ Web Slot, P/N 1275-1; Latch and Base Assembly, P/N 1274-1, CAGE 7M835; and three Non-Locking Carabiners, P/N 1005974-1.

3.3.2.7. The Quick Release Tether, P/N 1081555-N-1 contains the following assemblies:

Quick Release Restraint Subassembly, P/N 1081555-N-11 and Handle Cover, P/N 1081555-N-

13. This tether assembly is NOT compatible with the PRTS (Regular), P/N 1005942-3.

3.3.3. Fabrication

The end items shall be fabricated in accordance with the requirements specified in the corresponding drawings as listed below.

UCP Drawing No.

Generic Color Drawing No.

Drawing Name

1005827 N/A Strap End Keeper 1005843 N/A Bead, Tactile 1005850 1005850 Crew Specific Parts 1005851 N/A Extension Tether 1005852 N/A Retaining Loop Abrasion Cover 1005942 1050903 Personal Restraint Tether (PRT) w/Swivel 1005953 1006032 Extraction Strap 1005974 N/A Carabiner, Non-Locking 1005975 N/A Fixed Bail Snap Shackle 1005978 N/A Loop Strap 1005979 N/A Shackle Strap 1005980 N/A Cargo Tie-Down Strap 1005990 1006033 Safety Restraint Tether N/A 1006036 Retaining Loop Abrasion Cover N/A 1050902 Quick Release Extension Tether N/A 1050904 Quick-Release Extension Tether Assembly

N/A 1050905 Carabiners, Insertion & Retention N/A 1050906 QRET Handle Cover N/A 1050907 Cut Parts, QRET Handle Cover N/A 1050955 Component Materials and Colors N/A 1050956 Hook, Self-Locking Swivel N/A 1050961 Label, PRT w/Swivel N/A 1051019 Labels, Identification N/A 1081553 Personal Restraint Tethers, Attenuating, Short and

Long N/A 1081554 Extension Tether N/A 1081572 Extension Tether N/A 1081555 Quick Release Tether

3.3.3.1. Cut Parts

Cut parts used to fabricate the QRET Handle Cover shall be derived from the electronic data supplied by the Government. Electronic data for the QRET Handle Cover Cut Parts drawing 1050907 will be supplied as .dwg file types (or .dxf file types, if requested). The data (geometry and component locations) in the supplied pattern or cut part files shall not be modified without written approval from the Government. The manufacturer may add marks to the working cut parts beyond those defined by the electronic data to support the manufacturer's fabrication process.

3.4. Construction

3.4.1. Stitching and Seams

Stitches, seams, stitching types shall be as specified on the applicable drawings and constructed

IAW ASTM D 6193.

3.4.2. Seam Workmanship

Seam workmanship shall be such that no raw edges, run-offs, pleats, puckers, or open seams are present (see 6.5).

3.4.3. Seam Finishing

Seams shall be turned under by a hem, held by other stitching or encased in edge binding stitched as specified on the applicable drawing.

3.4.4. Backstitching

Backstitching and overstitching shall be a minimum of 1/2 inch in length, except where the ends are turned under or caught in other seams or stitching.

3.4.5. Stitches Per Inch

Stitches per inch shall be as specified on the drawings.

3.4.6. Thread Breaks, Skips and Run-offs

Thread breaks, skips, and run-offs shall be over-stitched not less than 1/2 inch.

3.4.7. Straight Stitching

Each line of straight stitching shall be straight and parallel to the seam edge.

3.4.8. Bartacking

Bartacks shall not be loose, misplaced or missing.

3.4.9. Thread Tension

The end items shall be stitched using a thread tension shall be such that seams show no loose stitching or puckering of the material sewn (see 6.5).

3.4.10. Thread Ends

All thread ends shall be trimmed flush (+1/16/-0 inch) with the surface of the finished item.

3.4.11. General Workmanship

End items shall be free from irregularities or defects that could adversely affect performance or durability.

3.4.12. Repairs

For non-load bearing components, repairs to ASTM D 6193 Type 301 stitching are allowed.

Loose or excessively tight stitching shall be repaired by removing the defective stitching without damaging the materials and re-stitching as required in the applicable drawing. Stitching shall be restarted and overstitched a minimum of 1/2 inch. Needle holes resulting from removed stitching do not constitute damage to the material. For load-bearing components, the complete removal and replacement of multiple point (Class 7 or WW) stitch patterns is NOT allowed.

Broken stitches shall be reinforced by overlapping the stitching 4 stitches on either end of the break. Three reinforcements are allowed in the harness assembly with no more than 1 reinforcement per stitch formation. All other proposed repairs (rework that results in a configuration not in strict compliance with the drawing requirements) shall be approved by the Government with a Request for Variance (RFV). Stitching specified as three rows of stitching or bartack stitches on the critical load bearing components shall not be reworked or repaired.

3.4.13. Labeling

3.4.13.1. Item labeling (labels and alternate markings) shall be IAW the applicable drawing requirements.

3.4.13.2. All labeling shall be easily legible with unaided examination by untrained personnel.

3.4.13.3. All item labeling shall be free of smears or smudging.

3.5. Operational Requirements

3.5.1. Visual Shade Comparison

All components identified in Table II column A shall match the standard sample for shade and appearance.

3.6. Performance

The Quick-Release Extension Tether, Quick Release Tether, Safety Restraint Tether, Extension Tether, Personal Restraint Tether (Regular, long Modified, Short Modified, Long, and Short), and Extraction Strap shall be performance tested for static load. The Quick Release Tether shall also be performance tested for actuation. The Snap and Loop Strap, Double Loop Strap and Cargo Tie-Down shall be performance tested for tensile strength. The Personal Restraint Tether, Attenuating (PRTA), Short and PRTA, Long shall perform and be constructed IAW the vendor’s technical requirements delineated in drawings for R61800-1 (PRTA, Short) and R61800-2 (PRTA, Long) CAGE 3SRG4.

3.6.1. SRT Static Load

The Safety Restraint Tether shall withstand a 5,000 lbf minimum load for 2 minutes (minimum) without broken stitches or yarns that results in a reduction of the load-carrying capability. The entire Safety Restraint Tether is a critical load-bearing component.

3.6.2. ET Static Load

The Extension Tether, PN 1005851-1 shall withstand a 2,700 lbf minimum load for 60 seconds (minimum) without broken stitches or yarns in a critical load-bearing component that results in a reduction of the load-carrying capability. Nor shall there be breakage or permanent deformation of any metallic components within the load path. The Extension Tether load path is from the steel “V” ring on one end to the locking carabineer, OPLFG (Cage Code 78848) installed on the loop at the other end. The entire Extension Tether is a critical load-bearing component.

The Extension Tether, PN 1081554-N-1, Extension Tether, 2-Foot, PN 1081572-N-1, and Extension Tether, 3-Foot, PN 1081572-N-2, shall withstand a 3,600 lbf minimum load for 60 seconds (minimum) without broken stitches or yarns in a critical load-bearing component that results in a reduction of the load-carrying capability. Nor shall there be breakage or permanent deformation of any metallic components within the load path. The Extension Tether load path is from the steel “D” ring on one end to the carabineer installed on the loop at the other end. The entire Extension Tether is a critical load-bearing component.

3.6.3. PRT Static Load

The Personal Restraint Tether (Regular, long Modified, Short Modified, Long, Short, Attenuating Long, and Attenuating Short) shall withstand a 2,700 lbf minimum load for 60 seconds (minimum) without broken stitches or yarns in a critical load-bearing component that results in a reduction of the load-carrying capability. Nor shall there be breakage or permanent deformation of any metallic components within the load path. The entire Personal Restraint Tether is a critical load-bearing component.

3.6.4. PRT Dynamic Load

The Personal Restraint Tether (Regular, long Modified, Short Modified, Long, Short, Attenuating Long, and Attenuating Short) shall withstand a fall of no less than eight feet vertical distance using and shall retain a rigid test weight weighing 300 + 2 lbs. The center of gravity of the rigid test weight shall be 15 inches ± 0.5 in , “+/- 0.5, (381mm, +/- 13mm) from the upper bearing point of the test weight when tested as specified in 4.6.3. The maximum energy absorption deployment distance shall not exceed 3.5ft. The maximum arresting force experienced by the rigid test weight shall not exceed 1800 lbs (8kN).

3.6.5. ES Static Load

The Extraction Strap shall withstand a 5,000 lbf minimum load for 2 minutes (minimum) without broken stitches or yarns in a critical load-bearing component that results in a reduction of the load-carrying capability. The entire Extraction Strap is a critical load-bearing component.

3.6.6. Snap and Loop Strap Tensile Strength

The Snap and Loop Strap shall demonstrate a tensile strength of 1250 lbf minimum.

3.6.7. Double Loop Strap Tensile Strength

The Double Loop Strap shall demonstrate a tensile strength of 1250 lbf minimum.

3.6.8. Cargo Tie-Down Strap Tensile Strength

The Cargo Tie-Down components (Base Subassembly, Ring Subassembly, and Latch Subassembly) shall individually demonstrate a tensile strength of 1250 lbf minimum.

3.6.9. Quick-Release Extension Tether Static Load

The Quick-Release Extension Tether is a critical load-bearing component with three distinct load paths: webbing loop to emergency release assembly (ERA); webbing loop to D ring; and D ring to ERA. The Quick-Release Extension Tether load-bearing path between the webbing loop and ERA shall withstand a 5,000 lbf minimum load for 2 minutes (minimum) without broken stitches or yarns that results in a reduction of the load-carrying capability. The Quick-Release Extension Tether load-bearing path between the webbing loop and D ring shall withstand a 2,700 lbf minimum load for 1 minute (minimum) without broken stitches or yarns that results in a reduction of the load-carrying capability. The Quick-Release Extension Tether load-bearing path between the D ring and ERA shall withstand a 2,700 lbf minimum load for 1 minute (minimum) without broken stitches or yarns that results in a reduction of the load-carrying capability.

3.6.10. Quick-Release Tether Load Tests

3.6.10.1. Quick-Release Tether Proof Load

The Quick Release Tether (QRT) load-bearing component consists only of the ERA hardware.

The QRT shall withstand a 100% inspection proof load of 2000 lb (minimum) without broken hardware, elongation, or deformation.

3.6.10.2. Quick-Release Tether Actuation Load

The Quick Release Tether (QRT) shall demonstrate that the safety release hardware can be actuated with the release handle, and that release occurs at a force of no less than 10 lb and no more than 27 lb while the tether is under a minimum of 300 lbf of tension.

4. Verifications

4.1. Classification of Inspection and Test

The inspection requirements specified herein are classified as outlined below. The Government reserves the right to perform any of the inspections and tests set forth where they are deemed necessary to ensure the supplies conform to prescribed requirements.

4.1.1. First Article Inspection and Test

First article inspection and test shall be performed on the items and quantities specified in the contract or order. The required demonstrations, inspections, and tests shall be as identified in Table III. The contractor shall conduct and pass these demonstrations, inspections, and tests prior to submitting end items for Government acceptance. The Government's acceptance of the contractor's end item product will be determined by the requirements validation. At any point after first article inspection and test has been approved, any material change shall be tested IAW the appropriate paragraph(s) of this document and approved by the Government.

4.1.2. Conformance Inspection and Test

Conformance inspection and test shall be performed, on samples (see 4.1.2.1) of completed units randomly selected by the Government from the production lot (see 4.1.2.2), unless otherwise specified. The inspections and tests shall be performed IAW Section 3 and 4 herein prior to submission of items to the Government for acceptance and delivery. This inspection and test shall include the verifications listed in Table III. The Government's acceptance of the contractor's end item product will be determined by the requirements validation. Responsibility for requirements validation shall be as specified in the contract.

4.1.2.1. Classification of Defects

Verification that defects identified during conformance inspection have been classified and assigned a defect code (see Table IV) shall be by inspection.

4.1.2.2. Sampling of Components

The quantity of items with part numbers defined in 3.3 that shall be subjected to conformance inspection and test shall be based on the size of the production lot (see 4.1.2.3) and IAW ANSI/ASQ Z1.4. The inspection and test levels shall be as follows:

a) 100% inspection for material certification inspections,

b) 100% inspection for the critical defects as defined in Table IV,

c) General inspection Level II shall be used for visual inspection requirements,

d) Special inspection Level S-3 shall be used for dimensional inspection requirements,

e) Special inspection Level S-3 shall be used for in-process inspection requirements, and

f) Special inspection Level S-1 shall be used for performance testing.

4.1.2.3. Production Lot

A production lot is defined as all the units within a single shipment for a contract delivery order plus the units required for performance testing that are made under the same conditions and made from the same materials and components.

4.1.3. Verification Methods

Verification methods shall be as follows:

a) Demonstration. Demonstration shall consist of a functional requirements verification in which the observation of functional operation is the predominant vehicle. Measurement shall not usually be required. Demonstration shall include the actual exercise of component, article, or system characteristics to verify that requirements have been satisfied.

b) Inspection. Inspection shall consist of visual examination, physical manipulation, or measurement (as applicable) of the item under acquisition to verify that requirements have been satisfied.

c) Test. Test shall consist of the collection of data using instrumentation or other special test equipment obtained from the actual exercise of the equipment in either a controlled or an operational environment as appropriate. Analysis of the collected data to compare the tested characteristics with performance and operational requirements shall be the usual means employed to verify that requirements have been satisfied.

4.2. Materials and Components

The materials and components used in the fabrication of the end items shall be subject to demonstration, inspection, and test to verify conformance to specifications, standards, and drawings and to the requirements of 3.2, if applicable. Certificates of Conformance (COC) for each material shall be inspected to verify that each material meets the requirements of applicable documents. All certifications shall be supported by test reports to ascertain their validity. The certifications and test data shall be kept on file and available for review for the life of the contract. No recycled materials shall be used.

4.3. Design

4.3.1. Part Numbers

Verification that the part number on the label attached to each end item matches the part number for that component delineated in Table I (see 3.3.1) shall be by inspection.

4.3.2. Tie-Downs, Lanyards and Tethers

Verification that the Tie-Downs, Lanyards and Tethers consist of the items described in Table I and that the items are attached and packaged as specified in Table I (see 3.3.2) shall be by inspection.

4.3.3. Fabrication

Verification that the end item conforms to the corresponding drawing requirements (see 3.3.3) shall be by visual and dimensional inspection. Inspections for conformance to design attributes that cannot be verified on the completed assembly shall be verified during the assembly process.

The manufacturer’s build paperwork shall provide evidence that, at a minimum, inspections have been conducted for conformance to the attributes listed in Table V and that any parts not meeting the requirements have been reworked or removed from the assembly process. Unless otherwise specified, dimensional inspections shall be performed with the item laid as flat as possible on a tabletop with only enough tension to keep it flat, without any creases or wrinkles that would affect the measurement. The distance between bartacks shall be measured from center-to-center.

4.3.3.1. Cut Parts

Verification that the QRET Handle Cover cut parts conform to the Government supplied electronic data (see 3.3.3.1) shall be by inspection.

4.4. Construction

4.4.1. Stitching and Seams

Verification that stitches, seams, and stitching types are as specified on the applicable drawings and constructed IAW ASTM D 6193 shall be by inspection.

4.4.2. Seam Workmanship

Verification that no raw edges, run-offs, pleats, puckers, or open seams are present shall be by inspection (see 6.5).

4.4.3. Seam Finishing

Verification that seams are either turned under by a hem, or held by other stitching, or encased in edge binding stitched as specified on the applicable drawing, shall be by inspection.

4.4.4. Backstitching

Verification that backstitching and overstitching are not less than ½ inch in length, except where the ends are turned under or caught in other seams or stitching, shall be by inspection.

4.4.5. Stitches Per Inch

Verification that stitches per inch are as specified on the drawings shall be by inspection.

4.4.6. Thread Breaks, Skips and Run-offs

Verification that thread breaks, skips, and run-offs are over-stitched not less than ½ inch shall be by inspection.

4.4.7. Straight Stitching

Verification that each line of straight stitching is straight and parallel to the seam edge shall be by inspection.

4.4.8. Bartacking

Verification that bartacks shall are not loose, misplaced, or missing shall be by inspection.

4.4.9. Thread Tension

Verification that thread tension is such that seams show no loose stitching or puckering of the material sewn shall be by inspection (see 6.5).

4.4.10. Thread Ends

Verification that all thread ends are trimmed flush (+1/16 /-0 inch) with the surface of the finished item shall be by inspection.

4.4.11. General Workmanship

Verification that the end items are free from irregularities or defects that could adversely affect performance or durability shall be by inspection for the defects listed in Table VI.

4.4.12. Repairs

Verification that item repairs have been made IAW 3.4.12 shall be by inspection.

4.4.13. Labeling

4.4.13.1. Verification that item labeling (labels and alternate markings) is IAW the applicable drawing requirements shall be by inspection.

4.4.13.2. Verification that item labeling is easily legible with unaided examination by untrained personnel shall be by inspection.

4.4.13.3. Verification that item labeling is free from smears or smudging shall be by inspection.

4.5. Operational Requirements

4.5.1. Visual Shade Comparison

Verification that components identified in Table II, column A, are a good match to the standard sample in shade and appearance shall be by inspection. Samples taken from the new color lot shall be compared to the standard sample. If there is a distinct color difference, the design activity shall participate in the determination of acceptability.

4.6. Performance

The Quick-Release Extension Tether, Quick Release Tether, Safety Restraint Tether, Extension Tether, Personal Restraint Tether, Extraction Strap, Snap and Loop Strap, Double Loop Strap, and Cargo Tie-Down shall be performance tested to verify that each strap is acceptable and can be shipped to the Government. The test units shall be randomly selected from the completed units. Failure of any units tested shall be cause to reject the lot. The performance tests will be witnessed by the Government. The Personal Restraint Tether, Attenuating (PRTA), Short and PRTA, Long shall be supported by documentation from the vendor, CAGE 3SRG4, demonstrating performance and construction IAW the vendor’s technical requirements delineated in drawings for R61800-1 and R61800-2.

4.6.1. QRET,SRT and ES Static Load Test

The QRET primary load path (webbing to ERA), SRT and ES shall independently withstand a 5000-lbf minimum load for 2 minutes (minimum) without broken stitches or yarns using the testing procedure below.

4.6.1.1. Static Load Testing Procedure:

1) Use a Constant Rate of Extension (CRE) tensile testing machine IAW ASTM

D76.

2) Load path shall be:

a) For the SRT, P/N 1005990-1 or 1006033-N-1, through the entire webbing loop; mount in the test fixture by placing each bearing rod through the webbing loop as depicted in Figure 4, allowing free movement.

b) For the ES, P/N 1005953-1 or 1006032-N-1 through the entire webbing loop;

mount in the test fixture by placing each bearing rod through the webbing loop as depicted in Figure 4, allowing free movement.

c) For the QRET, P/N 1050902-N-1, between the webbing loop and ERA; mount in the test fixture by placing each bearing rod through the webbing loop or ERA allowing free movement. Note: Carabiners, P/N 1050905-1, -2, or -3, may be used between the bearing rod and each end.

3) Use bearing rod (free-free) load boundary condition.

4) Pretension to 150 lbf.

5) Ambient temperature.

6) CRE of 1.0 inch per minute until a load of 5000 lbf or more is achieved.

7) Hold above 5000 lbf for 2 minutes.

8) Release tension and examine article for broken stitches or yarns.

9) Test shall be considered passed if no stitches or yarns are broken.

Figure 4: SRT and ES Test Setup

4.6.2. QRET, ET, PRT, and PRTS Static Load Test

The QRET secondary load path (webbing to D ring and D ring to ERA), ET and PRTS shall independently withstand a 2700-lbf minimum load for 30 seconds (minimum) on the ET, PN 1005851-1 (3,600-lbf minimum on the ETs with part numbers 1081554-N-1, 1081572-N-1 and 1081572-N-2) and PRTS, 1 minute (minimum) on the QRET, and PRT, without broken stitches or yarns using the testing procedure below. There shall not be breakage or permanent deformation of any metallic components. The webbing that is routed through any of the adjusters shall not slip through any adjuster more than ½ in. as a result of the application of this load.

4.6.2.1. Static Load Testing Procedure:

1) Use a Constant Rate of Extension (CRE) tensile testing machine IAW ASTM

D76.

2) Load path shall be:

a) for the ET, P/N 1005851-1, 1081554-N-1, 1081572-N-1, or 1081572-N-2, from the locking carabineer to the “V” ring or from “D-ring” to “D” ring.

b) for the PRTS, P/N 1005942-3, 1009042-3-L, and 1005942-3-S, from the Parachute Harness Snap to the Self-Locking Swivel Hook.

c) for the PRTS, P/N 1050903-N-1 and 1050903-N-3, from the D-Ring to the Self-Locking Swivel Hook.

d) for the QRET, PN 1050902-N-1, between the webbing loop and D ring; and between the D ring and ERA; mount in the test fixture by placing each bearing rod through the webbing loop, D ring, or ERA, allowing free movement.

Note: Carabiners, PN 1050905-1, -2, or -3, may be used between the bearing rod and each end. Test the ERA function by actuating and resetting (closing) the ERA three times prior to this test.

3) Use bearing rod (free-free) load boundary condition.

4) Pretension to 150 lbf.

5) Ambient temperature.

6) CRE of 1.0 inch per minute until a load of 2700 lbf (3,600 lbf or more for the ET, PN 1081554-N-1) or more is achieved.

7) Hold above 2700 lbf for 30 seconds for ET and PRTS, (3,600 lbf for the ET, PN 1081554-N-1, 1081572-N-1, and 1081572-N-2, QRET (both load paths), and

PRT).

8) Release tension and examine article for damage to metal hardware, broken stitches, or yarns.

9) Test shall be considered passed if no metal hardware is deformed or misshapen, no stitches or yarns are broken.

4.6.3. PRT Dynamic Load Test Procedure

Verification of the dynamic load testing shall undergo qualification and verification testing IAW ANSI/ASSE Z359.7 Qualification and Verification Testing of Fall Protection Products. The Personal Restraint Tether sample(s) shall be subjected to a dynamic load test with a minimum drop distance no less than eight feet. Attach one end of the PRT to a load cell. Attach the other end of the energy absorber to the test lanyard. The other end of the test lanyard shall be attached the test weight. The test weight shall be released from a point no more than 12 inches horizontally from the quick release connection to the load cell connection. Measurement of the length of the PRT shall be recorded from bearing point to bearing point while the weight is still suspended to determine energy absorption deployment distance after the drop test to ensure deployment distance does not exceed 3.5ft.

4.6.4. Cargo Tie-Down, Snap and Loop, and Double Loop Strap Tensile Test The Cargo Tie-Down components (Base Subassembly and Ring Subassembly,), Snap and Loop Strap, and Double Loop Strap shall independently demonstrate a 1250 lbf minimum tensile strength using the testing procedure below.

4.6.4.1. Tensile Test Procedure:

1) Use a Constant Rate of Extension (CRE) tensile testing machine IAW ASTM

D76.

2) Load path shall be:

a) for the Snap and Loop Strap, PN 1005978-1, from the Snap Hook to the webbing loop on the opposite end.

b) for the Double Loop Strap, PN 1005978-3, from the webbing loop on one end to the webbing loop on the opposite end.

3) for the Latch Subassembly, PN 1005980-11, from the Quick Release Steel Lug on one end to the Latch and Base Assembly on the opposite end. The Latch Subassembly is an integral component of the Base Subassembly, PN 1005980-17.

4) for the Ring Subassembly, PN 1005980-13, from the rectangular ring on one end to the rectangular ring on the opposite end.

5) for the Base Subassembly, PN 1005980-17, from the webbing loop on one end to the Latch and Base Assembly on the opposite end.

6) Use bearing rod (free-free) load boundary condition.

7) Pretension to 150 lbf.

8) Ambient temperature.

9) With CRE of 1.0 inch per minute operate the machine and break the specimen.

10) Read and record-breaking force.

11) If the test article slips in the jaws or breaks at the edge of the jaws, discard the result, and take another specimen.

12) Test shall be considered passed if there is no individual sample with breaking strength less than 1250 lbf.

4.6.5. Quick-Release Tether Load Tests

4.6.5.1. Quick-Release Tether Proof Load

For the QRT, P/N 1081555-N-1, perform an inspection proof load of 2000 lb (minimum) on 100% of production hardware and inspect to ensure there is no broken hardware, elongation, or deformation.

4.6.5.2. Quick-Release Tether Actuation Load

For the QRT, P/N 1081555-N-1, demonstrate the safety release actuation with the release handle, and record the release force. Any release that occurs with less than 10 lb or greater than 27 lb while the tether is under a minimum of 300 lbf of tension shall not be accepted.

5. Packaging For acquisition purposes, the contract or order shall specify complete packaging requirements.

When DOD personnel perform material packaging, those personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements. The Inventory Control Point packaging activity within the Military Department of Defense Agency, or within the Military Department's Systems Command, maintains packaging requirements. Packaging data retrieval is available from the managing Military Department's or defense Agency's automated packaging files, CD-ROM products, or by contacting the responsible packaging activity.

6. Notes (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)

6.1. Intended Use

The Tie-Downs, Lanyards and Tethers covered by this document are intended for use as part of the Air Warrior system for military aircrew for extraction, retrieval, and securing cargo. The quantities listed in Table I indicate the number of that item fielded to an individual aircrew member.

6.2. Acquisition Requirements

Acquisition documents should specify the following:

a) Title, number, and date of this document,

b) Whether first article and pre-production items are required and the quantity required,

c) Packaging requirements,

d) Acceptable quality levels (AQLs),and

e) Color, pattern, and shade evaluation requirements (The numeric value for “N” in the part numbers is dependent on the camouflage family that is specified in the contract. For example, -1 is the numerical value for “N” for the Operational Camouflage Pattern

(OCP)).

6.3. Standard Sample

For access to standard samples and pattern drawings, contact the procuring activity issuing the invitation for bid.

6.4. Recycled Materials

The use of recycled materials is NOT permitted under the requirements of this document.

6.5. Definitions

MIL-STD-3027 may be used for further clarification.

Open Seam An open seam is defined as one or more stitches joining the seam being broken or runoff, or when two or more continuous skipped stitches occur. Double stitched seams are considered open when one or both rows of the stitching are open.

Puckering A rippled appearance noted at the seams.

Raw Edge Any edge not finished as specified including any protruding raw edge on the outside of the finished article.

Tension Proper tension is determined by visual examination of the location of the thread lock below the cloth surface. Tension can also be determined by a firm pull with the hands along the line of stitching.

Too Loose Tension If the tension is too loose, the stitching will appear as a series of loops.

Too Tight Tension If the tension is too tight, the stitching will resist stretching, break or appear tight to the point of breaking.

6.6. Berry Amendment

The Berry Amendment (10 U.S.C. 2533a) may be applicable to the components and end item.

6.7. Visual and Spectral Reflectance Test

U.S. Army Natick Soldier RD&E Center (NSRDEC) is a Government approved test facility that may be used to perform visual and spectral reflectance testing. Suitable spectrophotometers for measuring spectral reflectance in the visible/near spectral include the Diano Hardy, Diano Match Scan, Hunter D54P-IR, and the MacBeth 1500 with IR options.

6.8. Visual shade matching.

In 2017, Option A of AATCC EP9 was changed to Option C. NOTE: In case of confusion, the viewing geometry should be “The specimen plane and illumination source will be parallel to each other and aligned so that the light flux is incident at the center of the specimen plane, which is set at a 35 (± 5°) angle relative to the horizontal. The observer will view the specimens at a 90° angle, relative to the plane of the specimens”.

7. Tables

Table I: Part Numbers for Tie-Down, Lanyards, and Tethers

Part Number Qty Nomenclature Notes 1005990-1 1 Safety Restraint Tether

1050904-N 1 Quick-Release Extension Tether Assembly 1, 8

1005850-1 1 Crew Specific Parts 2

1005942-3 1 Personal Restraint Tether w/Swivel (Regular) 3

10050942-3-L 1 Personal Restraint Tether w/Swivel (Long Modified) 4

10050942-3-S 1 Personal Restraint Tether w/Swivel (Short Modified) 4

1050902-N-1 1 Quick Release Extension Tether, Type 1 4, 8

1050902-N-3 1 Quick Release Extension Tether, Type 2 4, 8

1050903-N-1 1 Personal Restraint Tether w/Swivel (Long) 4, 8

1050903-N-3 1 Personal Restraint Tether w/Swivel (Short) 4, 8

1005953-1 1 Extraction Strap 1005978-1 1 Snap and Loop Strap 1005978-3 1 Double Loop Strap 5 1005979-1 1 Shackle Strap 6 1005980-1 1 Cargo Tie-Down Strap 7

1005850-N-2 1 Crew Specific Kit 8, 9 1006033-N-1 1 Safety Restraint Tether 8 1006032-N-1 1 Extraction Strap 8 1081554-N-1 1 Extension Tether 8 1081572-N-1 ALT Extension Tether, 2-Ft 8 1081572-N-2 1 Extension Tether, 3 Ft 8 1051555-N-1 1 Quick Release Tether 8, 10

1081553-N-1 1 Personal Restraint Tethers, Attenuating, Short 8, 11

1051553-N-3 ALT Personal Restraint Tethers, Attenuating, Long 8, 11

Notes:

1) The Quick-Release Extension Tether Assembly contains the following components:

Quick Release Extension Tether, Type 1, P/N 1050902-N-1; Retaining Loop Abrasion

Cover, P/N 1006036-N; Retention Carabiner, P/N 1050905-1, -2, or -3; and QRET Handle Cover, P/N 1050906-N.

2) The Crew Specific Parts contains the following assemblies: Extension Tether, P/N 1005851-1 and Retaining Loop Abrasion Cover, P/N 1005852-1.

3) The Personal Restraint Tether with Swivel (Regular) is compatible only with Crew Specific Parts.

4) The Personal Restraint Tethers with Swivel (Long Modified, Short Modified, Long, and Short) are compatible only with Quick-Release Extension Tether, Type 1 and Type 2 Assembly. Type 2 QRET Tether is qualified but not currently released for production or fielding.

5) The Double Loop Strap contains a Coiled -Spring Snap Hook, P/N PIA-PS22043-1.

6) The Shackle Strap contains a Fixed Bail Snap Shackle, P/N 1005975-1.

7) The Cargo Tie-Down Strap contains the following assemblies: Latch Subassembly, P/N

1005980-11; Ring Subassembly, P/N 1005980-13; Anchor Strap Subassembly, P/N 1005980-15; and Base Subassembly, P/N 1005980-17. The Cargo Tie-Down Strap contains the following hardware components: Rectangular Ring, P/N 1254, CAGE 7M835; Adjuster Safety Shoulder Harness, P/N MS22007-2; Link, Lap Safety Belt 1 ¾ Web Slot, P/N 1275-1; Latch and Base Assembly, P/N 1274-1, CAGE 7M835; and three Non-Locking Carabiners, P/N 1005974-1.

8) N is substituted with a numeric designation for a specific camouflage family color or pattern (see 6.2)

9) The CSK includes a Quick Release Tether, P/N 1081555-N-1, Extension Tether, P/N 1081554-N-1 (or alternate Extension Tether, 2-Ft, PN 1081572-N-1) and a Retention Carabiner, P/N 1050905-5.

10) The QRT P/N 1081555-N-1 contains the following assemblies: Quick Release Restraint Subassembly, P/N 1081555-N-11 and Handle Cover, P/N 1081555-N-13.

11) The Attenuating Personal Restraint Tethers, P/N 1081553-N-1 and -N-3 are compatible with both the CSP 1005850-N-1 and the CSK 1005850-N-2.

Table II: Color Requirements

Component Drawing or Specification

A.

Visual (Good Visual

Match Only) Labels (all types and classes)

MIL-DTL-

32075

X

Thread (all types and classes)

A-A-59826 X

Webbing, Elastic, Type II, Class 1

PIA-W-5664 X

Snap Fastener Button, Style 4, MS27983-1

NASM27983 X

Snap Fastener Button, Style 2, MS27980-1B

NASM27980 X

Tactile Bead 1005843 X Locking Carabiner OPLFG X Carabiner

Table III: Verification Cross Reference Matrix

Requirement Verification Verification

Paragraph Method1 FA CI

3.1 Classification of inspection

and test

Inspection X X 4.1

3.1.1 First article inspection

and test

Inspection X 4.1.1

3.1.2 Conformance inspection

and test

Inspection N/A X 4.1.2

3.1.2.1 Classification of

defects

Inspection N/A X 4.1.2.1

3.2 Materials and components Inspection, Test

X X 4.2

3.3 Design N/A 4.3

3.3.1 Part numbers Inspection X X 4.3.1

3.3.2. Tie-Downs, Lanyards

and Tethers

Inspection X X 4.3.2

3.3.3 Fabrication Inspection X X 4.3.3

3.4 Construction N/A 4.4

3.4.1 Stitching and seams Inspection X X 4.4.1

3.4.2 Seam workmanship Inspection X X 4.4.2

3.4.3 Seam finishing Inspection X X 4.4.3

3.4.4 Backstitching Inspection X X 4.4.4

3.4.5…