MIL-DTL-2845E.pdf

AMSC N/A FSC PACK

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

INCH-POUND

MIL-DTL-2845E(SH)

18 August 1999

SUPERSEDING

MIL-P-2845D(SH)

17 June 1991

DETAIL SPECIFICATION

PROPULSION SYSTEMS, BOAT AND SHIP; MAIN SHAFTING, PROPELLERS,

BEARINGS, GAUGES, SPECIAL TOOLS, AND ASSOCIATED REPAIR PARTS;

PRESERVATION, PACKAGING, PACKING AND STORAGE OF

This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense.

1. SCOPE

1.1 Scope. This specification covers the cleaning, drying, preservation, packing, marking, and storage of main propulsion shafting, line shaft bearings, stern tube and strut bearings, boat and ship propellers, propeller devices including controllable pitch propellers, shafting, and accessories thereto. It also covers repair parts, tools, and independently mounted main propulsion thrust bearings.

1.2 Levels of protection.

1.2.1 Preservation.

Level A (see 3.5.1.1 and 6.4.1.1).

Commercial (see 3.7.10 and 6.4.1.2).

1.2.2 Packing.

Level A (see 3.8.1 and 6.4.1.1).

Commercial (see 3.8.2.7 and 6.4.1.2).

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. 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 specification, whether or not they are listed.

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, SEA 03Q, Naval Sea Systems Command, 2531 Jefferson Davis Hwy, Arlington, VA 22242-5160 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

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MIL-DTL-2845E (SH)

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 of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2).

SPECIFICATIONS

FEDERAL

A-A-203 - Paper, Kraft, Untreated.

A-A-1894 - Paper, Kraft, Treated (Fire Resistant).

A-A-1898 - Cushioning Material, Cellulosic, Packaging.

P-D-680 - Dry Cleaning and Degreasing Solvent.

VV-L-800 - Lubricating Oil, General Purpose, Preservative (Water-

Displacing, Low Temperature).

PPP-B-566 - Boxes, Folding, Paperboard.

PPP-B-585 - Boxes, Wood, Wirebound.

PPP-B-601 - Boxes, Wood, Cleated-Plywood.

PPP-B-621 - Box, Wood, Nailed and Lock-Corner.

PPP-B-665 - Boxes, Paperboard, Metal Edged and Components.

PPP-B-676 - Boxes, Setup.

PPP-B-1055 - Barrier Material, Waterproofed, Flexible.

PPP-C-1120 - Cushioning Material, Uncompressed Bound Fiber for

Packaging.

DEPARTMENT OF DEFENSE

MIL-C-104 - Crates, Wood; Lumber and Plywood Sheathed, Nailed and Bolted.

MIL-B-121 - Barrier Material, Greaseproofed, Waterproofed, Flexible.

MIL-S-196 - Support Items, Accessories, and Kits, Mechanical;

Packaging of.

MIL-P-197 - Packaging of Bearings, Antifriction; Associated Parts and

Subassemblies.

MIL-B-233 - Box, Repair Part, Storage.

MIL-B-3106 - Board, Composition, Water-Resistant, Solid (for Filler or

Cushioning Pads).

MIL-P-3420 - Packaging Materials, Volatile Corrosion Inhibitor, Treated, Opaque.

MIL-C-3774 - Crates, Wood; Open, 12,000- and 16,000-Pound Capacity.

MIL-R-5001 - Rubber Cellular Sheet, Molded and Hand-Built Shapes; Latex

Foam.

MIL-R-6130 - Rubber, Cellular, Chemically Blown.

MIL-C-6799 - Coatings, Sprayable, Strippable, Protective, Water

Emulsion.

MIL-C-9897 - Crates, Slotted Angle, Steel or Aluminum, for Lightweight

Airframe Components and Bulky Items(for Maximum Loads of 1363 Kgs (3000 Pounds).

MIL-L-10547 - Liners, Case, and Sheet, Overwrap; Water-Vaporproof or Water-proof, Flexible.

MIL-PRF-16173 - Corrosion Preventive Compound, Solvent Cutback, Cold- Application.

MIL-P-16789 - Pumps (Including Prime Movers and Support Items);

Packaging of.

MIL-E-17555 - Electronic and Electrical Equipment, Accessories, and Provisioned Items (Repair Parts): Packaging of.

MIL-PRF-20092- Rubber or Plastic Sheets and Assembled and Molded Shapes, Synthetic, Foam or Sponge, Open Cell.

MIL-B-22019 - Barrier Materials, Transparent, Flexible, Sealable, Volatile Corrosion Inhibitor Treated.

MIL-B-22020 - Bags, Transparent, Flexible, Sealable, Volatile Corrosion

Inhibitor Treated.

MIL-T-22085 - Tapes, Pressure-Sensitive, Adhesive, Preservation and

Sealing.

MIL-I-22110 - Inhibitor, Corrosion, Volatile, Crystalline Powder.

MIL-B-22191 - Barrier Material, Transparent, Flexible, Heat-Sealable.

MIL-C-23760 - Coating, Sprayable, Strippable, Protective, for Packaging of Weapons Systems and cComponents: Application of.

DEPARTMENT OF DEFENSE

MIL-STD-129 - Standard Practice for Military Marking.

MIL-STD-758 - Packaging Procedures for Submarine Support Items.

MIL-STD-2073-1C - Standard Practice for Military Packaging.

HANDBOOKS

DEPARTMENT OF DEFENSE

MIL-HDBK-129 – Handbook for Military Marking.

(Unless otherwise indicated, copies of the above specifications, standards, and handbooks are available from the Standardization Document Order Desk, Defense Automated Printing Service (DAPS), 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)

2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation.

DOCUMENTS

NAVAL SEA SYSTEMS COMMAND (NAVSEA)

S9245-AR-TSM-010/PROP Technical Manual, Marine Propeller Inspection, Repair and Certification.

(Applications for copies should be addressed to the Standardization Documents Order Desk, Defense Automated Printing Service (DAPS), Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.)

PUBLICATIONS

DEPARTMENT OF LABOR (OSHA)

Code of Federal Regulations (CFR), 29 CFR, Part 1910, Sections 145 and 1001 - Hazard Communication Standards.

(Application for copies should be addressed to the Superintendent of Documents, US Government Printing Office, Washington, DC 20402.)

2.3 Non-Government publications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2).

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI Z1.4 - Sampling Procedures and Tables for Inspection by Attributes. (DoD adopted)

(Application for copies should be addressed to the American National Standards Institute, Inc., 11 West 42nd Street, 13th Floor, New York, NY 10036.)

AMERICAN PLYWOOD ASSOCIATION (APA)

APA PS-1 - Construction and Industrial Plywood.

(Application for copies should be addressed to the American Plywood Association, U.S. Headquarters and International Marketing Division, 7011 South 19th Street, PO Box 11700, Tacoma, WA 98411-0700.)

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM D 1974 - Standard Practice for Methods of Closing, Sealing, and Reinforcing Fiberboard Boxes.

ASTM D 3951 - Standard Practice for Commercial Packaging. (DOD adopted)

ASTM D 4376 - Standard Specification for Vapor-Degreasing Grade Perchloroethylene.

ASTM D 5118 - Standard Practice for Fabrication of Fiberboard Shipping Boxes.

ASTM D 5168 - Standard Practice for Fabrication and Closure of Triple-Wall Corrugated Fiberboard Containers.

ASTM D 5486 - Standard Specification for Pressure-Sensitive Tape for Packaging, Box Closure, and Sealing.

ASTM D 6039 - Crates, Wood, Opened and Covered. (DoD adopted) ASTM D 6251 - Standard Specification for Wood-Cleated Panelboard

Shipping Boxes.

(Application for copies should be addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428- 2959.)

AMERICAN WOOD PRESERVERS’ ASSOCIATION (AWPA)

AWPA C1 - All Timber Products, Pressure Treatment.

AWPA C2 - Lumber, Timbers, Bridge Ties and Mine Ties, Pressure Treatment.

AWPA C9 - Plywood, Pressure Treatment.

(Application for copies should be addressed to American Wood Preservers’ Association, 3246 Fall Creek Highway, Suite 190, Granbury, TX 76049-7979.)

ASSOCIATION OF AMERICAN RAILROADS (AAR)

Association of American Railroads Rules.

(Application for copies should be addressed to the Association of American Railroads, American Railroads Building, 50 F Street, NW, Washington, DC 2001- 1564.)

2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2.

3.2 Definitions or explanation of packaging terms. Definitions or explanation of packaging terms applicable to this specification shall be as defined in the applicable referenced specification (see 6.4).

3.3 Materials. Packaging materials shall be as specified herein and in the applicable referenced specifications.

3.3.1 Recycled, recovered, or environmentally preferable materials.

Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.

3.3.2 New materials. The use of newly developed packaging materials or procedures is encouraged and recommended and will be permitted under the conditions specified herein, provided they are equal to or better than the specified materials or procedures.

3.3.2.1 Certification of new materials. Materials or procedures other than those specified herein shall equal or exceed the requirements specified herein. If, after a review of the material or procedure and the related documented evidence, or the witnessing of the stipulated tests, it is the opinion of the contracting activity that the material or procedure meets or exceeds the requirements specified herein, authorization for use will be granted.

3.3.3 Asbestos.

3.3.3.1 Packaging material. Asbestos or material and items containing asbestos shall not be used in the packaging of material covered by this specification (see 6.5).

3.3.3.2 Packaged items. Asbestos and separately packaged components containing asbestos shall be packaged in sealed, dust, and siftproof packages.

Flexible packages shall be heat sealed.

3.3.3.3 Dusting material. Talc or talcum, when used in the packaging process, for example, dusting of items, shall be asbestos-free.

3.3.4 Cushioning and wrapping materials. The use of excelsior, newspaper, shredded paper (all types) and similar hygroscopic or nonneutral materials, and all types of loose fill materials for applications such as cushioning, fill, stuffing, and dunnage is prohibited.

3.4 Technical information. Complete descriptive packaging details on drawings, test results, and packaging, and transportation data requirements are not required when such were previously approved by the contracting activity.

3.5 Levels of protection.

3.5.1 Preservation. Unless otherwise specified (see 6.2), preservation shall be level A as specified in 3.5.1.1 (see 6.4.1).

3.5.1.1 Level A. Cleaning, drying, preservatives, preservative application criteria, and methods of preservation (unit protection) shall be in accordance with MIL-STD-2073-1C (military preservation), and as specified herein. Requirements in table I are assigned by item; methods of unit protection are assigned on the basis of the type of unit protection most commonly required for a specific component or item. The preservation activity may provide any additional protection that is considered necessary with the prior approval of the contracting activity.

TABLE I. Preservation.

Item Preservatives Method of preservation

(MIL-STD-2073-1C)

Remarks

Accessories See 3.7.2.7 and 3.14.3

Sleeves shrunk on shaft

See 3.15.2

Certification form for propeller

See 3.14.5

Devices See 3.14.8 Electrical and electronic items

See 3.7.2.5 and MIL- E-17555

Finished machined:

Steel shaft surfaces

See 3.15.2

Bronze shafts

See 3.15.2

Nickel-copper alloy shafts

See 3.15.2

Full molded rubber or laminated phenolic

None Method 10

Line shaft and main thrust bearings

MIL-PRF-16173, GR 3 Method 20 See 3.7.2 and 3.7.3

Technical manuals None Method 10 See 3.10 Miscellaneous finished bronze, brass, and nickel-copper alloy castings (stern tube stuffing box and gland)

None Method 10

Miscellaneous finished forged and rolled brass, bronze and nickel-copper alloy parts (studs, rings, and keys)

None Method 10 See 3.7.2.3

Miscellaneous finished forged and rolled steel parts (coupling bolts, nuts, washers, keys, and coupling flanges)

MIL-PRF-16173, GR 1

MIL-PRF-16173, GR 4

or

MIL-P-3420

MIL-B-22019

MIL-B-22020

MIL-I-22110

Method 20 or

Method 30

Miscellaneous finished steel and iron castings bulkhead stuffing box

MIL-PRF-16173, GR 1

MIL-PRF-16173, GR 4

or

MIL-P-3420

MIL-B-22019

MIL-B-22020

MIL-I-22110

Method 20 or

Method 30

TABLE I. Preservation – Continued.

Propeller fairwater caps

See 3.14.9

Propeller gauges See 3.17 & figure 18 Item Preservatives Method of preservation

(MIL-STD-2073-1C)

Remarks

Propellers, fixed pitch Ship

See 3.14

Boat See 3.14.1.3 Propellers, controllable pitch

See 3.14

Built up and controllable pitch propeller hubs

See 3.16

Pumps See 3.7.2.6 Roller and ball bearings

See MIL-P-197

Rough machined steel shaft forgings

MIL-PRF-16173, GR 1

MIL-PRF-16173, GR 4

Repair parts (support items and accessories)

See 3.7.2.7 and MIL-S-

Fiberglass - covered shaft areas

See 3.15.4

Stern tube and strut bearing bushings

None Method 10

Stern tube and strut bearing staves:

Laminated phenolic None Method 10 _1

Rubber, brass backed None Method 10 Tube from stern tube and strut bearings

None Method 10

Plug and ring gauges See 3.18

1 Rubber items and surfaces covered with rubber shall be covered with an opaque or kraft wrapping paper in accordance with A-A-203 or A-A-1894, type and style optional, to prevent direct exposure to sunlight.

3.6 Disassembly, matchmarking, and lubrication.

3.6.1 Disassembly. System, equipment, or item disassembly shall be the minimum necessary to make accessible for cleaning, drying, and preservation of equipment and its critical surfaces. Removal of secondary assemblies, accessories, or projecting parts which will facilitate protection of the equipment or item from damage, pilferage, loss, or reduction of cube is permitted where such removal will not affect permanent settings or alignments, and where the removed items can be readily reassembled at the installation site without the need for special tools or gauges. Removed hardware (bolts, nuts, pins, screws, washers, and others) shall be reinstalled in the mating parts and secured to prevent loss. Removed items or parts shall be packaged to the same level of protection as the basic or prime equipment.

3.6.2 Matchmarking. Removed parts or items shall be matchmarked to facilitate reassembly. Removed parts or items shall be tagged and marked and the tags shall be attached to each mating part or item. The tags and printing thereon shall be resistant to water, oil, and fading.

3.6.3 Lubrication. Rotating joints, bearings, and similar moving parts shall be thoroughly lubricated. The lubricant shall be as specified in the equipment specification or as approved by the contracting activity. Excess lubricants shall be removed before packing operations.

3.7 Preservation. Preservation shall be level A or commercial, as specified (see 6.2).

3.7.1 Cleaning and drying. Unless otherwise specified herein, items shall be cleaned and dried by any suitable process or processes which are not injurious to the item or as specified herein.

3.7.2 Preservation. Immediately after product cleaning and drying, surfaces of the equipment or part shall be treated with a preservative as specified in table I, or as specified herein. During and after preservative application, the product shall be handled in such a manner as to produce a uniform protective film. The protective film shall remain untouched for a period of time to allow the film to set before wrapping and packing are undertaken. Preservative shall not be applied to items or surfaces which are vulnerable to damage by the preservative and in accordance with MIL-STD-2073-1C. Excessive use of preservatives shall be avoided.

3.7.2.1 External metal surfaces. Items shall be preserved as specified in table I. Preservatives for external metal surfaces shall be in accordance with MIL-STD-2073-1C. The use of preservatives in accordance with MIL-PRF-16173, grades 1 and 4 shall be limited to surfaces where it will not have to be removed to place the equipment in operation, or where its removal by scraping or solvent action would not damage the part or equipment.

3.7.2.2 Internal metal surfaces. Internal metal surfaces which normally are in contact with oil shall be coated with a preservative in accordance with MIL-PRF-16173, grade 2. Internal metal surfaces normally in contact with water shall be coated with a preservative in accordance with MIL-PRF-16173, grade 3 or MIL-PRF-16173, grade 5. The MIL-PRF-16173, grade 5 preservative shall be used when chemical boil-out cannot be used for compound removal, or where removal by hot water or steam is desired.

3.7.2.3 Finished machined surfaces. Unless otherwise specified herein, external finished machined steel surfaces protected with a preservative (see table I) shall be wrapped with barrier material in accordance with MIL-B-121, type I, grade A, class 2, followed by an overwrap with type I, grade C, class 1 or 2, with class selection at the activities option.

3.7.2.4 Closure of openings. Unless otherwise specified herein, openings shall be sealed with tape in accordance with ASTM D 5486, or a minimum 0.004 inch thick polyethylene film secured with tape as specified herein. When the covering is vulnerable to damage (puncture, tearing, and so forth) the covering shall be further protected by use of weather-resistant hardboard, wood, plywood, or metal covers. Pipe and fitting ends may be sealed with metal or plastic caps or plugs.

3.7.2.5 Electrical and electronic equipment. Preservation, packing, and marking shall be in accordance with MIL-E-17555.

3.7.2.6 Pumps and associated parts. Preservation, packing, and marking shall be in accordance with MIL-P-16789.

3.7.2.7 Accessories and detached parts. Unless otherwise specified herein, accessories and detached parts shall be preserved as specified in table I. Except as specified in table I, and in order to facilitate packaging, accessories such as thermometers, sight glasses, and route connectors shall be individually preserved in accordance with MIL-S-196 or the applicable component specification. Unless otherwise specified (see 6.2), accessories accompanying equipment, preserved as specified herein, shall be packed in separate containers and secured within the complete or main (number one) equipment container. Consolidation of accessories and detached parts in common shipping containers shall be applied where feasible.

3.7.2.8 Incorporated equipment. For systems, assemblies, and components acquired for incorporation into a ship or assembly prior to delivery to the Government, the requirements of this specification do not apply. In lieu thereof, preservation, packing, and marking of these systems, assemblies, or components shall be sufficient to provide protection from damage and deterioration until incorporation.

3.7.3 Bearings. Ball or roller bearings shall be preserved in accordance with MIL-P-197. Lubricating systems, sleeve bearings (except prelubricated bearings), and housings shall be flushed with a preservative in accordance with MIL-PRF-16173, grade 2 and thoroughly drained. Surfaces of sleeve bearings and journals shall receive a preservative coating. Barrier material in accordance with type I, grade A, class 2 of MIL-B-121 shall be used between the upper half linings of split sleeve bearings and journal to prevent vertical movement of the shaft or rotor after the bearing caps have been seated and bolted in place. The barrier material shall be projected beyond the assembly to permit easy detection. Each journal so prepared shall be plainly marked with a suitable waterproof tag marked with the following:

"BEFORE OPERATING MACHINE, REMOVE BARRIER MATERIAL BETWEEN THE JOURNAL AND

UPPER HALF LINING".

3.7.4 Repair parts and tools (accompanying equipment or for stock).

Repair parts and tools shall be cleaned, preserved, and packaged as specified in table I, except as specified herein. Unless otherwise specified (see 6.2), repair parts and tools shall be packaged one part per unit package, except that all parts comprising a single set or assembly shall be packaged together.

When unit is packaged as a set, assembly, or in quantities greater than one, each item shall be wrapped or cushioned to prevent direct surface contact with the surface of adjacent parts.

3.7.4.1 Other repair parts. Repair parts not specifically covered in table I shall be cleaned, preserved, and packaged as specified (see 6.2).

3.7.4.2 Submarine repair parts. Repair parts for submarine usage shall have special reduced cube packaging in accordance with MIL-STD-758.

3.7.4.3 Special tools. Special tools shall be cleaned, preserved, and packaged in accordance with MIL-STD-2073-1C as follows:

(a) Tools made of ferrous metal with non-critical surfaces shall be cleaned as specified in 3.7.1, dried as required, coated with a preservative in accordance with MIL-PRF-16173, grade 2, and packaged in accordance with method 20 of MIL-STD-2073-1C. In lieu of the greaseproof wrap required, tools may be wrapped in transparent flexible greaseproof film in accordance with type II of MIL-B-22191.

(b) Tools made of ferrous metal with critical surfaces shall be cleaned as specified in 3.7.1, dried as required, coated with a preservative in accordance with VV-L-800, and packaged in accordance with method 30 of MIL-STD-2073-1C. Selection of method 31, 32 and 33 shall be at the activity’s option. Transparent flexible greaseproof film in accordance with type II of MIL-B-22191 may be used in lieu of wrapping material in accordance with MIL-B-121 for a preliminary wrap.

(c) Tools fabricated completely of non-ferrous materials or ferrous materials that are plated or otherwise treated to resist corrosion shall be packaged in accordance with method 10 of MIL-STD-2073-1C.

3.7.5 Unit and intermediate containers. Unit containers, except those required in accordance with MIL-STD-2073-1C for the applicable method of preservation, and intermediate containers shall be folding paperboard, fiberboard, paperboard, metal stayed or set-up paperboard boxes in accordance with PPP-B-566, PPP-B-665, PPP-B-676, or ASTM D 5118 at the option of the preserving activity. The gross weight of paperboard boxes shall be not greater than 10 pounds. Fiberboard boxes shall be not greater than 20 pounds.

Unless otherwise specified (see 6.2), box closure shall be as specified in the applicable box specification or appendix thereto except that box closure for ASTM D 5118 shall be in accordance with ASTM D 1974. When the gross weight is greater than 20 pounds, unit and intermediate containers shall conform to the containers specified in 3.8 for the level specified subject to the limitations specified herein.

3.7.6 Repair parts boxes. Unless otherwise specified (see 6.2), repair parts boxes shall not be required. When required, on board repair parts shall be packed in type M (steel) or type W (nonmagnetic) repair parts boxes in accordance with MIL-B-233, as specified (see 6.2).

3.7.7 Index listing of repair parts and tools. An index list of repair parts and tools shall be inserted in each shipping container containing repair parts. The list shall be inserted in the index list support located on the interior side of the repair parts box cover, or shall be placed within the box for quick accessibility. The list shall give a complete itemized list of the container contents including stock numbers, nomenclatures, and quantities. The list shall be enclosed in a waterproof bag or shall be so treated as to be resistant to water, oil, and fading.

3.7.8 Cushioning and wrapping materials. Equipment or parts shall be cushioned, as required, to prevent damage to the item as specified in MIL-STD- 2073-1C, and to prevent puncture or tearing of the barrier materials used in packaging. Excessive use of cushioning within the unit package shall be avoided since an unnecessary increase in tare weight and cube will otherwise result. Cushioning materials which have not been chemically refined for noncorrosiveness shall only be used when contained in a sealed waterproof barrier in accordance with PPP-B-l055. Cushioning materials used within the unit pack shall conform to any of, or combination of, the following specifications, at the contractor's option, which will provide the required protection:

Specifications Materials Special requirements

A-A-1898 Cellulosic PPP-C-1120 Bound fiber For Navy, use class A, grade 1, type optional A-A-203 Paper, kraft, untreated A-A-1894 Paper, kraft, treated (fire-resistant) MIL-B-3106 Board, composition, water-resistant, solid MIL-R-5001 Rubber, latex foam For Navy, use grade A, type and class optional MIL-R-6130 Rubber, cellular For Navy, use grade A MIL-R-20092 Rubber sheets and assembled and molded shapes, cellular, synthetic, open cell

For Navy, use class 5

3.7.9 Barrier materials. When using barrier materials in accordance with MIL-B-121, the following precautions shall apply:

(a) The greaseproof side of grade A materials shall be in contact with the part or surface.

(b) Grade C material shall not be in contact with metal surfaces or be used as an intimate wrap.

3.7.10 Commercial. Commercial preservation of equipment, accessories, components, and repair parts shall be in accordance with ASTM D 3951.

3.8 Packing. Packing shall be level A or commercial, as specified (see 6.2).

3.8.1 Level A.

3.8.2 General requirements. Shipping containers shall be of similar construction, of uniform size, and of minimum cube and tare consistent with required protection. Special tools, when furnished, shall be packed with the equipment for which they are intended. Contents of the shipping container shall fit so the packed unit forms a compact, nonshifting load. Wood, plywood, or wood-cleated boxes shall be modified by the addition of skids. Unless otherwise specified herein, application of skids shall be in accordance with PPP-B-601, PPP-B-621, or the applicable crate specification when used. Except where otherwise specified herein, crates shall be used for the shipment of individual items exceeding the weight limitations of the wood, plywood, or wood-cleated boxes. Unless otherwise specified (see 6.2), selection of the shipping container shall be at the packaging activity’s option. The reference preservation, packing, and car loading figures herein are intended for general guidance use. Wherever reference is made to wood, wood sheathing, or wood boxes, plywood sheathing (see 3.8.2.2) and plywood boxes in accordance with PPP-B-601 are acceptable alternates.

3.8.2.1 Anchoring, blocking, bracing, and cushioning. Except as otherwise specified herein, equipment, accessories, and repair parts shall be anchored, blocked, braced, and cushioned, as applicable, in accordance with the appendix to the applicable container specification. Cushioning materials shall conform to materials specified in 3.7.8.

3.8.2.2 Wood and plywood containers.

3.8.2.2.1 Plywood. Plywood sheathing, including container tops (crates), shall be in accordance with APA PS-1. Unless otherwise specified (see 6.2), plywood selection for container use shall be as follows:

(a) Multiple trip containers. - Multiple-trip plywood containers (see 6.4.2) shall be in accordance with APA PS-1, minimum grade A-C, preserved as specified in 3.8.2.2.2.1, or in accordance with APA PS-1, marine grade.

(b) Single trip containers. - Single-trip plywood containers shall be in accordance with APA PS-1, exposure 1, minimum grade C-D.

3.8.2.2.2 Multiple-trip containers. Containers including interior packing media shall be fabricated and assembled to certify re-use. Unless otherwise specified herein for wood or plywood boxes, the box cover (sides, ends, and top) may be assembled and fastened with nails; however, the assembled cover shall be fastened to the container platform or base by screws or bolts. Additional guidance for the application, selection, and spacing requirements for fasteners is contained in the applicable container specification.

3.8.2.2.2.1 Preservative treatment for multiple-trip containers. Unless otherwise specified (see 6.2), all multiple-trip (reusable) containers and all of the finished wood or plywood members and parts shall be preserved in accordance with AWPA C1 and C2 for lumber and AWPA C9 for plywood, for “above ground use”. When containers are painted, preservation shall be accomplished prior to the painting application. Fasteners (nails, bolts, screws, washers, nuts, and so forth) for containers treated as specified herein shall be galvanized or corrosion treated unless otherwise specified. Cut ends of lumber or plywood that are untreated shall be preserved by coating untreated ends with a copper-napthanate solution.

3.8.2.3 Stern tube and strut bearing. Bearings or bearing staves shall be packed in wood or wood-cleated plywood boxes in accordance with PPP-B-621, class 2, or PPP-B-601, overseas type, respectively, at the packaging activity’s option. Full molded or stave bearings not greater than 90 pounds need not be strapped and shall be packed in wood-cleated panelboard boxes in accordance with ASTM D 6251, class II. Staves greater than 1000 pounds shall be packed in sheathed or covered crates in accordance with MIL-C-104, type I, class 1 or 2, or ASTM D 6039. Unless otherwise specified (see 6.2), selection of the crate type and style shall be at the packaging activity’s option.

3.8.2.4 Line shaft and thrust bearings. Oil and grease lubricated line shaft and thrust bearings of the conventional roller, ball, or babbitt type shall be packed in containers as specified in 3.8.2.5.

3.8.2.5 Associated repair parts. Associated repair parts shall be packed in containers in accordance with any one of the following specifications at the option of the packaging activity:

Specification Container Type or class

PPP-B-585 Wood, wirebound Class 3 ASTM D 6251 Panelboard, wood-cleated Class weather-resistant ASTM D 5118 Fiberboard Weather-resistant ASTM D 5168 Fiberboard, corrugated, triple-wall Class 2 MIL-C-104 Crates, wood, lumber, and plywood sheathed MIL-C-3774 Crates, wood, open ASTM D 6039 Crates, wood, open and covered

Shipping containers, except ASTM D 5118 fiberboard boxes, shall be closed and reinforced in accordance with the applicable container specification or appendix thereto. ASTM D 5118 fiberboard boxes shall be closed in accordance with sealing method B or C of ASTM D 1974. The gross weight of wood or wood-cleated boxes shall be not greater than 200 pounds, except when a single item exceeds 200 pounds. Fiberboard boxes shall not exceed the weight limitations of the applicable fiberboard box specifications. Shipping containers, except crates and ASTM D 5118 fiberboard boxes, shall have caseliners in accordance with MIL-L-10547. Caseliners shall be closed in accordance with MIL-L-10547.

Barrier material in accordance with MIL-B-121 may be used to fabricate the caseliner. Caseliners are not required when boxes are packed with items or interior packages meeting the following:

(a) Items which are completely painted and have no unprotected critical surfaces

(b) Large items which are completely coated with a preservative in accordance with MIL-PRF-16173, grades 1 or 4, with critical interior item surfaces preserved and all openings sealed with authorized material

(c) Method 30 or 40 packages, in accordance with MIL-STD-2073-1C

(d) Interior packages which conform to weather-resistant types or classes and are waterproofed in accordance with the applicable interior package container specification.

3.8.2.6 Repair parts boxes. Repair parts boxes in accordance with MIL-B-233 (see 3.7.6) shall be overpacked in containers as specified in

3.8.2.5. The gross weight of parts shall be not greater than 200 pounds in any one box. Where the combined weight of a set is greater than 200 pounds, such parts shall be grouped and packed in two or more boxes numbered consecutively to show the number of boxes in a complete set. Unless otherwise specified (see 6.2), an exception will be made when an individual pan weight is greater than 200 pounds, in which case the part shall be packed in an individual repair parts box.

3.8.2.7 Commercial packing. Equipment preserved as specified in 3.7.10 shall be packed in accordance with ASTM D 3951.

3.9 Marking. In addition to any special marking required (see 6.2), level A interior (unit and intermediate) packages and exterior shipping containers shall be marked for shipment in accordance with MIL-STD-129 / MIL-HDBK-129 except that wood containers shall be stenciled in all capital letters. A contrasting color oil based paint shall be applied to the wood surface prior to stenciling. Commercial packages and shipping containers shall be marked in accordance with ASTM D 3951.

3.10 Technical manuals. Manuals which accompany shipments shall be packaged in transparent, waterproof, plastic bags not less than 4 mils thick and heat sealed. Manuals, when shipped in bulk quantities, shall not be individually wrapped, but shall be packed in accordance with the requirements of the applicable manual specification or packed in containers in accordance with the requirements for the level specified. Shipment of equipment which includes technical data shall have the location of the information annotated on the packing list. In addition, the shipping container housing the manuals shall be marked "MANUALS ENCLOSED".

3.11 Air shipment. Items required for movement by air shipment shall be handled for transportability in accordance with the procedures specified by the Air Mobility Command Air Base receiving the item for airlift.

3.12 Asbestos items. An asbestos caution label shall be affixed to each interior (unit and intermediate) and exterior pack. The caution label shall be in accordance with 29 CFR, part 1910, sections 145 and 1001 (yellow background with black letters). The caution label shall state the following:

“CAUTION

Contains Asbestos Fibers.

Avoid Creating Dust.

Breathing Asbestos Dust May Cause Serious Bodily Harm”.

3.13 Workmanship. Workmanship shall be so that, when the proper procedures are followed, materials and equipment being processed, cleaned, preserved, packed, and marked will receive protection against corrosion and deterioration during shipment and prolonged periods of storage, and will require minimum reprocessing for service for further storage.

3.14 Propellers.

3.14.1 Propeller preservation. Propellers are categorized as monobloc and built up blades. Built up blades may be of the controllable-pitch (CP) type. The requirements for ready for issue (RFI) propellers and not ready for issue (NRFI) propellers are identical except as specified herein.

Preservation for propellers shall be level A as specified in this specification unless otherwise specified. Alternate methods for propeller preservation may be utilized with the prior approval of the contracting activity. Propellers shall be cleaned in accordance with NAVSEA S9245-AR-TSM- 010/PROP. Prior to preservation, monobloc propellers shall have the forward and aft faces protected as specified below.

3.14.1.1 Air emission system. Prior to the application of strippable compound, ships' propellers incorporating an air emitter system shall have the air inlet and air emitter openings covered with minimum 3/4-inch wide pressure sensitive tape in accordance with MIL-T-22085, type II. The tape shall be centered over the air emitter holes. Acrylic or transparent protective coatings or coverings shall not be applied in lieu of tape.

3.14.1.2 Closure of hub openings. Monobloc propeller bore openings equal to or less than 12 inches shall be sealed with tape in accordance with MIL-T-22085, type II or a minimum 0.004 inch thick polyethylene film secured with tape as specified herein. When the covering is vulnerable to damage (puncture, tearing, and so forth.) the covering shall be further protected by use of weather-resistant hardboard, wood, plywood, or metal covers. Pipe and fitting ends shall be sealed with metal or plastic caps or plugs. Monobloc propellers with bore openings greater than 12 inches shall be closed as specified below.

3.14.1.2.1 Forward end closure. The forward end of the propeller hub shall be fitted with a 0.75-inch thick, marine grade plywood in accordance with APA PS-1, disk held in place with hex head bolts. Bolt heads shall be countersunk into the plywood disk. The outer diameter of the disk shall be equal to the outside diameter of the hub forward face. The inner diameter of the disk shall be 0.5 inches larger than the bore at the hub forward face. The forward end closure shall be reusable.

A single layer of barrier material in accordance with MIL-B-121, type I, grade A, class 2 shall be placed between the wood disk and propeller.

3.14.1.2.2 Aft end closure. The aft end of the hub shall be fitted with a thick steel plate attached to the hub aft face with hex head bolts. The plate shall be machined with a step that will fit into the aft face counterbore. The plate thickness shall be a minimum of 0.375 inch thick but of suitable size to resist deflection during transportation of the propeller on a tilt-type fixture. The plate outer diameter shall be equal to the outside diameter of the hub aft face and the inner diameter shall be 6 inches. Cut outs shall be provided in the steel plate to permit shouldering the eyebolts. A minimum of two eyebolts shall be installed in the aft face, 180 degrees apart. The aft end closure shall be reusable. A single layer of barrier material in accordance with MIL-B-121, type I, grade A, class 2 shall be placed between the metal disk and propeller.

3.14.1.2.2.1 Long term protection. For storage longer than 60 days, the center holes in the plywood disk and steel plate shall be covered with 0.75-inch thick marine grade plywood in accordance with APA PS-1, of sufficient diameter to cover the hole. The plywood covers shall be bolted with hex head bolts to the plywood disk and steel plate. The bolts shall be countersunk into the plywood disk.

The peripheral joints between the plywood disk, steel plate, plywood covers, and hub faces shall be covered with tape in accordance with MIL-T-22085, type II. The tape and center plywood covers may be removed at the time of shipment if the propeller is to be shipped utilizing a propeller shipping frame (see figure 1).

After shipment, the tape and plywood covers shall be replaced.

3.14.1.2.2.2 Short term protection. For temporary protection of less than 60 days, the center hole in the plywood disk and steel plate shall be covered with tape in accordance with MIL-T-22085, type II. The tape may be removed at the time of shipment if the propeller is to be shipped utilizing a propeller shipping frame (see figure 1). After shipment, the tape shall be replaced.

3.14.1.2.3 CP blade palm protection. The bottom of CP blade palms shall be covered with barrier material in accordance with MIL-B-121, type I, grade A, class

2. A marine grade plywood disk of 3/8 thickness shall then be applied to the CP blade palm and secured by bolting with corrosion resistant (stainless steel) hex head bolts through the CP blade bolt holes. Marine grade plywood washers shall be inserted into the top of the corresponding CP blade bolt holes. Barrier material in accordance with MIL-B-121, type I, grade A, class 2 shall be placed between the washers and the blade palm.

3.14.1.3 Preservative application. Screw slots, holes, other machined attributes, or sharp edges shall be covered with tape in accordance with MIL-T- 22085, type II to prevent the preservative from spanning gaps. Monobloc and CP propellers shall be coated with a strippable compound which shall be in accordance with MIL-C-6799, type II, multi-coat system. The coating shall be applied directly, except as otherwise specified herein, to the propeller. The finished coat system shall consist of three separately applied coats in the following order: black, gray, and a white top coat, having a 12- to 15-mil total dry film thickness. The material can be sprayed, brushed, or rolled in passes to a 4- to 5-mil dry thickness per coat without sagging. The compound application shall be in accordance with MIL-C-23760.

In no case shall a white coat be applied as the first coat. Unless otherwise specified (see 6.2), propellers less than 30 inches in diameter shall be preserved with material in accordance with MIL-PRF-16173, grade 4. NRFI propellers shall be coated with a single black coat of preservative. An acrylic or transparent protective coating or covering shall be applied over the stamped propeller identification markings to maintain these markings in a fully visible and readily readable condition after further preservation. Edges of the preservative adjacent to the stamped hub or palm data shall be sealed with an acrylic coating or tape conforming to MIL-T-22085, type II.

3.14.1.3.1 Alternate procedure - strippable compound. Screw slots, holes, other machined attributes, or sharp edges shall be covered with tape in accordance with MIL-T-22085, type II to prevent the preservative from spanning gaps. The strippable compound shall be in accordance with MIL-C-6799, type II, multi-coat system. Except as otherwise specified herein, the coating shall be applied directly to the propeller. The finished coat system shall consist of two separately applied coats in the following order: type II, class 1 black, and type II, class 5 white top coat, having a 12- to 25-mil total dry film thickness. The material may be sprayed or brushed on in passes to a 4- to 5-mil dry thickness per coat without sagging or runs. The compound application shall be in accordance with MIL-C-23760. In no case shall a white coat be applied as the first coat. NRFI propellers shall be coated with a single black coat of preservative. An acrylic or transparent protective coating or covering shall be applied over the stamped propeller identification markings to maintain these markings in a fully visible and readily readable condition after further preservation. Edges of the preservative adjacent to the stamped hub or palm data shall be sealed with an acrylic coating or tape conforming to MIL-T-22085, type II.

3.14.1.4 Propeller blade edge guards. Blade edge (including tips) guards shall be applied over the protective coating and be applicable only to propellers greater than 60 inches in diameter, and less than 60 inches in diameter when the propellers are not crated. Prior to edge guard application, the edge of each propeller blade shall be completely covered with at least two thicknesses of not less than 8-ounce canvas, or cloth reinforced rubber of 0.187-inch thickness. Blade tips of class 1 propellers identified in accordance with NAVSEA S9245-AR-TSM-010/PROP shall have cloth reinforced 0.187-inch thick rubber applied over the canvas. Blade edge guards shall be preformed to conform to the blade shape and shall be placed over the canvas and rubber covering. The edge guard shall be fabricated of galvanized sheet metal, 18 gauge (0.048-inch), using figure 2 as a guide. Edge guard sections shall be joined by the use of stainless steel screws and double nuts to permit removal of damaged sections of edge guards. A minimum of two, but not more than four, corrosion-resistant steel (stainless steel) straps shall be secured to the metal edge protector. Attachment hardware for the straps shall be stainless steel.

Strapping shall be applied on both sides of each blade following the blade surface contour, and positioned to prevent the edge protector from loosening or becoming dislodged during handling, shipment, and storage. The blade edge guard straps shall be protected from contacting the preserved propeller surface by covering the strap with not less than two thicknesses of 8-ounce canvas or cloth reinforced rubber of

0.187-inch thickness. The canvas or rubber shall be secured to the strap to prevent movement during transportation. Blade edge guards shall be free from damage or defects prior to installation. Propellers less than 30 inches in diameter and crated shall have the edges covered with a split heavy rubber hose or equivalent to protect the blade edges. The split rubber hose shall be secured to the propeller by any suitable means.

3.14.1.5 Repairs to preservation. When preservation is damaged, the damaged area shall be inspected in accordance with NAVSEA S9245-AR-TSM-010/PROP and the preservation repaired. Damage to the protective coating specified in 3.14.1.3 shall be repaired by removing an area surrounding the damage by 1 inch in all directions.

The preservative coating shall be re-applied as specified in 3.14.1.3. Damaged edge guards that may result in damage to the propeller shall be replaced. Damaged straps and hub end closures shall be replaced if inadequate protection of the propeller will result. Damaged areas shall be tagged or marked “DAMAGE INVESTIGATED” with the date and investigating activity noted on the tag.

3.14.2 Propeller packing.

3.14.2.1 Controllable-pitch and bolted-on blades. Controllable-pitch and bolted-on blades preserved as specified above shall be packed in hub sets.

References to eye bolts and propeller diameters specified herein shall be disregarded. Multiple containers for a single hub set are required when the size and/or weight of the blades is to large to permit handling by forklift.

Wood materials utilized for container construction shall be as specified in

3.8.2.2 for multiple trip use. Containers shall be assembled with corrosion resistant (stainless steel) screws. Viewing ports shall be added to two sides of the crate and shall be hinged with corrosion resistant (stainless steel) hinges to permit visual examination of the crate interior. The viewing ports shall be capable of being secured during transportation and storage.

Controllable pitch and bolted on blades shall be positioned in crates with the blade serial number and stock number up. Crate tops shall be attached with corrosion resistant (stainless steel) hex head bolts to permit removal and reuse of the container top. The exterior of each container shall be marked as specified in 3.14.4.4. Packing of controllable-pitch and single bolted-on blades is shown on figure 3.

3.14.2.2 Monobloc. Propellers, 40 pounds and greater, shall be individually packed and provided with lifting eye bolts to facilitate propeller handling, including placement and removal from its shipping and storage container. Monobloc propellers shall be marked as specified in

3.14.4.2. Container figures applicable to propellers will require modification to accommodate propeller eye bolts.

3.14.2.2.1 Propellers, 30 inches in diameter and less. Propellers, 30 inches in diameter and less, shall be multiple or individually packed in multiple-trip containers (see 6.2) as follows:

(a) Multiple pack. - Propellers shall be packed in wood boxes (see figure 4) in accordance with PPP-B-621, class 2, style 2, for type 3 load. Box components shall be joined by corrosion resistant (stainless steel) screws. Wood materials utilized for container construction shall be as specified in 3.8.2.2 for multiple trip use. Sheathing, ends, and cleats shall be not less than 1-inch lumber. A diagonal cleat to the same size as the regular cleats shall be used on each end of the box. One intermediate set of inside cleats or battens of not less than nominal 1- by 4-inch lumber shall be nailed and clinched to the sides, top, and bottom midway between the ends. Hubs of propellers shall be fitted with suitable wood cones with drilled centers to fit a suitable tie bolt on which propellers shall be strung. Tie bolts shall be securely suspended between the ends of the box by use of nominal 2- by 10-inch members securely cleated to the inside of the box ends. The size of the box shall ensure not less than approximately 1 inch clearance on top, sides, and ends. Boxes greater than 48 inches long shall be provided with an intermediate saddle midway between the ends which firmly supports the tie bolt from all sides. The saddle support shall be securely attached to the sides, top, and bottom of the box. Suitable blocking which will not injure or mar the blades shall be provided to prevent propellers from turning on the tie bolt. Boxes shall be provided with skids in accordance with the applicable box specification. The gross weight of each box shall be not greater than 600 pounds.

(b) Individual packs.

(1) Propellers shall be packed in wood boxes in accordance with PPP-B-621, class 2, style 2 (reinforced), type 3 load as shown on figure 5. Wood materials utilized for container construction shall be as specified in 3.8.2.2 for multiple trip use. Box components shall be joined by corrosion-resistant (stainless steel) screws.