Purchase_Description__Navy-EXWC_34-Ton_Stake_Breakbulk_Trailer_formated.docx

PURCHASE DESCRIPTION: NAVY-EXWC TRAILER STAKE BREAKBULK 34T

Document Identification: PURCHASE DESCRIPTION: NAVY-EXWC TRAILER STAKE BREAKBULK 34T Date: 9/22/2026

NOTES TO OFFERORS

Exceptions to Specifications:

The offeror shall explicitly and completely identify any and all exceptions taken to the requirements of this specification. Drawings, literature, and any other information submitted with an offer do not constitute a stated or implied exception unless specifically identified in writing as an exception and accepted and implemented by an amendment to the solicitation or modification to a contract. Any exception deemed acceptable by the Government shall only apply to the specific item, requirement, etc., cited and shall not extend to any other requirement.

Brand Name or Equal:

Offerors offering items other than the brand names identified herein, when an "or equal" may be acceptable, shall furnish with their offers all technical data information, product descriptions, etc., to ensure that an accurate determination may be made as to the equality of the product(s) offered (reference Federal Acquisition Regulation [FAR] 52.211-6, "Brand Name or Equal").

Required Proposal Submittals:

The following items shall be submitted with the offer:

Letter of Exceptions: A detailed explanation, submitted in a separate letter, of any exceptions to the specification, including proposed alternate equipment, or a declaration of comprehensive understanding and full compliance with no exceptions taken.

Preliminary Drawings: Preliminary engineering drawings demonstrating compliance with the requirements herein, including:

Layout views of the proposed trailer showing all equipment locations and basic dimensions.

Exterior front, rear, and side elevation views with overall dimensions.

Weight & Rating Estimates: Estimated curb weight and Gross Vehicle Weight Rating (GVWR) / Gross Trailer Weight Rating.

Quality Assurance Documentation: Documented evidence of established quality assurance procedures or systems.

Customer & Warranty Service Plan: Detailed information describing customer service, warranty service access, and technical support via email, telephone, web portal, or other communication methods.

1.0 SCOPE AND BACKGROUND

1.1 Scope

This purchase description covers a commercial off-the-shelf (COTS) derived, 34-ton payload capacity stake breakbulk semi-trailer modified to support military operational readiness in austere environments. The trailer will transport containerized freight, breakbulk cargo, palletized materials, and construction supplies evenly distributed across the load platform.

1.2 Background

The Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC) has a requirement to replace an aging fleet of trailers based on current mission and operational support requirements. Documented fleet requirements address shortcomings of the legacy fleet and establish baseline compliance with Military (MIL), American Welding Society (AWS), and Society of Automotive Engineers (SAE) standards for tactical and commercial trailers. Compliance with these standards promotes commonality across the Department of Defense (DoD), military departments, and commercial logistics chains, enabling joint expeditionary interoperability.

2.0 APPLICABLE DOCUMENTS

2.1 Federal Standards and Regulations

Code of Federal Regulations (CFR):

49 CFR Part 393 – Federal Motor Carrier Safety Regulations (FMCSR): Parts and Accessories Necessary for Safe Operation 49 CFR Part 571 – Federal Motor Vehicle Safety Standards (FMVSS) Military Standards (MIL-STD):

MIL-STD-209K – Interface Standard for Lift and Tie Down Provisions MIL-STD-1366E – Interface Standard for Transportability Criteria MIL-STD-1791D (Change 1) – Interface Standard for Internal Aerial Delivery in Fixed Wing Aircraft Department of Defense Instructions (DoDI):

DoDI 4540.07 (Change 3) – Operation of the DoD Engineering for Transportability and Deployability Program

2.2 Society of Automotive Engineers (SAE) Standards

SAE J163 – Low Tension Wiring and Cable Terminals and Splice Clips SAE J429 – Mechanical and Material Requirements for Externally Threaded Fasteners SAE J551 – Measurement of Electromagnetic Radiation from Motor Vehicles and Devices SAE J553 – Circuit Breakers SAE J560 – Primary and Auxiliary Seven-Conductor Electrical Connector for Truck-Trailer Jumper Cable SAE J561 – Electrical Terminals – Eyelet and Spade Type SAE J575 – Tests for Motor Vehicle Lighting Devices & Components SAE J576 – Plastic Materials, for Use in Optical Parts Such as Lenses and Reflectors of Motor Vehicle Lighting Devices SAE J578 – Color Specification for Electric Signal Lighting Devices SAE J682 – Rear Wheel Splash and Stone Throw Protection SAE J1128 – Low Tension Primary Cable SAE J1292 – Automobile, Truck, Truck-Tractor, Trailer, and Motor Coach Wiring SAE AMS-STD-595A – Colors Used in Government Procurement Applications

2.3 International Organization for Standardization (ISO)

ISO 668 – Series 1 Freight Containers – Classification, Dimensions and Ratings

2.4 NATO Standardization Agreements (STANAG)

STANAG 4009 – Interface Geometry between Tractors and Semi-Trailers

2.5 Industry Recommended Practices

TMC RP 803 – Pre-Service Trailer Inspection (Technology & Maintenance Council, American Trucking Associations) ASTM B117 / D1654 – Standard Practice for Operating Salt Spray (Fog) Apparatus / Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments ASTM D3170 – Standard Test Method for Chipping Resistance of Coatings AWS / ASME – Structural Welding Codes for Steel and Stainless Steel

2.6 Order of Precedence

In the event of a conflict between the text of this purchase description and the references cited herein, the most stringent requirement, as determined by the Government, shall take precedence. Nothing in this document shall supersede applicable federal and state safety statutes or regulations.

3.0 GENERAL REQUIREMENTS

3.1 Materials and Workmanship

Material Suitability: All materials shall be new, of commercial industrial quality, and free from defects that would adversely impact structural integrity, serviceability, safety, or appearance.

Component Standards: Component parts shall be manufactured to definite engineering tolerances, fits, and clearances. Whenever dissimilar metals are joined, they shall be insulated to prevent galvanic corrosion.

Welding Quality: Welded, bolted, and riveted fabrication shall conform to applicable AWS and ASME standards. All welds shall exhibit full penetration, be uniform, and be free of cracks, voids, undercutting, excessive slag, and spatter.

Environmental Resistance: Non-metallic components, including hoses, bushings, and mudflaps, shall be ozone- and ultraviolet (UV)-resistant.

3.2 Prime Mover Compatibility

The trailer shall interface without physical obstruction or operational impairment with standard commercial and tactical Government-owned prime movers across a 5th wheel operating height range of 49 to 59 inches. Salient tractor parameters include:

Mack Granite 6x4 (160K Tractor):

Model / Series: Mack GR64BTX Gross Combination Weight (GCW): 66,000 lbs.

Gross Combination Weight Rating (GCWR): 176,000 lbs.

Front Axle Weight Rating (FAWR): 22,000 lbs. (limited to 20,000 lbs. by tires) Rear Axle Weight Rating (RAWR Tandem): 46,001 lbs. per axle Wheelbase: 204.5 in. (center of front axle to center of tandem spread) 5th Wheel Height: 53.5 in.

Swing Clearances: Rear swing clearance 75 in.; front swing clearance 66.5 in. to cab obstruction (adjustable 6 in. rearward / 17.5 in. forward) Wet Line Hydraulic Kit: 2,500 psi @ 20 gpm with 3/4-in. quick-connect coupler; 30-gal reservoir Heavy Truck Tractor (HTT):

Series: Navistar HTT GCW / GCWR: 130,000 lbs. / 166,000 lbs.

FAWR / RAWR: 20,000 lbs. / 84,000 lbs. (tandem) Wheelbase: 197.5 in. to intermediate axle; 258 in. to rearmost axle (60 in. axle spread) 5th Wheel Height: 52 to 59 in. adjustable Swing Clearances: Rear 73 in.; front 58 in. (adjustable 15.5 in. rearward / 30 in. forward) Wet Line Hydraulic Kit: 3,000 psi @ 57 gpm with 1-1/4-in. quick-connect coupler Heavy Interim Truck Tractor (HITT):

Series: International WorkStar Model 7600 SBA 6x6 GCW / GCWR: 62,000 lbs. / 26,280 lbs.

FAWR / RAWR: 16,000 lbs. / 46,000 lbs. (tandem) Wheelbase: 217 in. (center of front axle to center of tandem spread) 5th Wheel Height: 50 to 52 in.

Swing Clearances: Rear 99 in.; front 79.5 in. (adjustable 41 in. rearward / 14 in. forward) Wet Line Hydraulic Kit: 13–46 gpm @ 2,500 psi with 1-3/4-in. female coupler Medium Tactical Vehicle Replacement (MTVR) Tractor:

Series: MK31 GCW / GCWR: 62,000 lbs. / 46,000 lbs.

FAWR / RAWR: 16,000 lbs. / 46,000 lbs. (tandem spread 56.4 in.)

Wheelbase: 212.2 in.

5th Wheel: Fixed type, 52 to 59 in. adjustable suspension height Swing Clearances: Rear 69 in.; front 62.5 in.

Wet Line Hydraulic Kit: N/A

4.0 CONFIGURATION & SUBSYSTEM REQUIREMENTS

4.1 Structural Capacities & Dimensions

Payload Capacities:

Minimum distributed rating: 70,000 lbs. (35 tons) evenly distributed over the load deck.

Minimum concentrated rating: 50,000 lbs. concentrated in 20 feet or less.

Overall Dimensions:

Length: 48 ft. maximum.

Width: 102 in. (8.5 ft.) maximum.

Unloaded Deck Height: Maximum 59 in. when coupled to a prime mover with 51 in. 5th wheel height.

Loaded Height: Shall not exceed standard legal clearance of 13 ft. 6 in. with cargo.

Kingpin Swing Clearance: 84 in. minimum radius.

Frame & Chassis: High-strength structural steel fabrication with reinforced top and bottom flanges.

4.2 Cargo Deck and Headboard

Deck Material: Composite / recycled rubber decking (1-3/4 in. Rumber or Government-approved equivalent) impervious to hydrocarbons, water, mud, insect infestation, and UV degradation. Cross-members spaced to eliminate localized deflection under rated loading.

Removable Front Headache Rack / Headboard:

Heavy-duty steel bolt-on removable construction.

Dual top forklift pockets (4 in. H x 10 in. W) spaced approximately 43 in. on center.

Integrated chain rack with locking provisions and DOT-compliant reflectors.

Protected LED work lights recessed below top structural beam with manual toggle switch on driver side.

Quick-disconnect electrical harness with tool-free access and sufficient slack to prevent wire tensioning.

4.3 Landing Gear

Two-speed manual landing gear with driver-side operational crank.

Crank handle shall feature a positive locking bracket to secure it during highway and rough-terrain transit.

Clearance profile shall prevent physical interference with tractor rear frame components throughout suspension travel.

4.4 Electrical and Lighting Systems

System Voltage: Dual-voltage 12V / 24V DC operating range (6–28V DC compatible).

Connectors:

Commercial 7-way SAE J560 connector (12V).

NATO 12-pin intravehicular trailer connector (24V), centered in mounting pocket with adequate clearance for military plug backshells.

Lighting: Complete commercial sealed LED lighting system meeting FMVSS / DOT standards.

Wiring Harness Integrity:

Fully sealed modular harnesses with weatherproof connectors and rubber protective pass-through grommets.

Clamping: Secured with hard-mount bolt-through clam-shell brackets with rubber isolators. Spaced to prevent sagging or snagging during off-road operation. Zip ties, electrical tape, and wire hangers are strictly prohibited.

ABS Indicator: Driver-side rear-mounted ABS malfunction indicator lamp.

4.5 Axles, Suspension, and Brakes

Axles & Running Gear: Dual heavy-duty commercial trailer axles rated at 25,000 lbs. nominal capacity each.

Oil bath hubs with visible oil-level sight glasses.

Automatic slack adjusters.

Mechanical (analog) hub-odometer mounted on driver-side front axle hub. Digital hub meters are prohibited.

Suspension: Heavy-duty air-ride suspension with rear-recessed manual dump valve control (Hold / Raise / Lower / Auto-dump).

Brakes: Commercial standard Antilock Braking System (4S/2M ABS minimum) with mechanical air tank drainage petcock valves accessible from side or rear.

Lines & Couplers: Air and hydraulic lines supported by sling/hanger provisions to protect lines during tractor coupling/uncoupling. Glad hands shall include tethered dust covers with retaining chains.

4.6 Wheels and Tires

Wheels: Solid one-piece steel hub-piloted dual wheels. Super-single wheel/tire configurations are strictly prohibited.

Tires: New, commercial-grade, non-retread steel-belted pneumatic radial tires rated for maximum GVWR at highway speeds.

All tires on an individual unit shall be of identical make, model, and tread pattern (matched set).

Manufacture date shall not exceed 12 months at time of vehicle acceptance. Double Coin brand tires are prohibited.

Inner and outer dual tire assemblies shall feature accessible valve stem extensions.

4.7 Cargo Handling and Securing Provisions

Container Transport Capabilities: The trailer platform shall accommodate any of the following loads:

Six (6) 6 ft. 8 in. TRICON containers locked individually to the deck.

Two (2) 20 ft. ISO 668 containers locked individually to the deck.

One (1) 40 ft. ISO 668 container locked individually to the deck.

Mixed cargo configurations (combinations of TRICON, 20-ft, palletized supplies, and breakbulk materials).

Container Locks: Twenty-four (24) integrated retractable/interchangeable ISO twist locks (12 per side). Final lock spacing and chassis layout subject to Navy approval.

Twist Lock Operating Tools: Two (2) container cone twist-lock handle toolbars (one stowed per side).

Perimeter Winch Tracks: Roadside sliding winch track with a minimum of twelve (12) 4-in. sliding winches and 4 in. x 25 ft. cargo straps with flat hooks (minimum 5,500 lbs. working load limit each).

Rub Rail: Heavy-duty curbside steel rub rail mounted flush with side sill channels.

Stake Pockets: Heavy-duty perimeter stake pockets spaced 24 in. on center.

Chain Slots: Keyhole chain slots punched along outer side deck rails and complemented by 4-way center deck tie-down slots, sized to accept standard transport chain hooks.

Toolboxes: Two (2) lockable, weatherproof steel tool compartments with reinforced hinges and paddle latches to house binders, chains, twist lock tools, and accessories.

Spare Tire Carrier: One (1) matching spare tire and rim assembly mounted in a carrier that does not impede tractor turning radius, ground clearance, or cargo operations.

Auxiliary Equipment: Flag holder brackets (two front, two rear) and non-branded heavy-duty black rubber mudflaps.

5.0 AIR TRANSPORTABILITY AND CERTIFICATION

ATTLA Air Transportability Certification

1. Purpose and Scope This procedural workflow establishes the end-to-end operational and engineering sequence required to achieve United States Air Force (USAF) Fixed-Wing Air Transportability Certification for military equipment and ground vehicles.

Certification applies to transport on the following strategic and tactical airlift platforms:

Lockheed Martin C-130 Hercules / Super Hercules (C-130E, C-130H, C-130J) Boeing C-17 Globemaster III Lockheed C-5 Galaxy / C-5M Super Galaxy

2. Governing Standards and Policy References All submissions, structural assessments, and interface testing must adhere to the following Department of Defense (DoD) directives and military standards:

DODI 4540.07 CHG-3: Operation of the DoD Engineering for Transportability and Deployability Program MIL-STD-1366E: Interface Standard for Transportability Criteria MIL-STD-1791D CHG-1: Designing for Internal Aerial Delivery in Fixed Wing Aircraft (Specifically Section 5.3.3.2 and Paragraph 6.4) MIL-STD-209K: Interface Standard for Lifting and Tiedown Provisions

3. Stakeholder Roles and Responsibilities (RACI Matrix)

4. End-to-End Procedural Workflow [Phase 1: Contract Award & Project Initiation] (Within 10 Days Post-Award) [Phase 2: In-Production Collaboration & Technical Checks] [Phase 3: Final Technical Data Package (TDP) Assembly] [Phase 4: ATTLA Engineering Evaluation & Review] (Within 60 Days) (Deficiencies Found) (Package Approved) [Corrective Action / RFI] [ATTLA Certification Memo Issued] [Phase 5: IOA Verification & Delivery] [SDDCTEA / Pull Test] (Only if required)

Phase 1: Contract Award and Project Initiation [Contract Awarded: GSA/DLA] ──> [Distribute MVDO/Contract] ──> [Sponsor Letter Sent within 10 Days] ──> [ATTLA Opens Project] Award Notification & Documentation:

The Acquisition Source (GSA, DLA, or other agency) notifies the purchasing customer / Government Agency Sponsor of the contract award.

Acquisition Source transmits the award order/contract, including:

Order or contract number (inclusive of all exercised options).

Copy of the Motor Vehicle Delivery Order (MVDO), as applicable.

Purchasing Customer / Sponsor contact info (name, phone, email).

Awarded OEM Vendor / Contractor contact info (name, phone, email).

Sponsor Letter Submission (Deadline: 10 Working Days Post-Award):

The Government Agency Sponsor acts as the official liaison and submits an initial request letter via email to ATTLA (ATTLA@us.af.mil) at Wright-Patterson AFB to open an active project case file.

Mandatory Project Reference Data:

Item Nomenclature / Product Description (e.g., Truck Tractor 20T, Trailer Lowbed HYD RGN 60T).

Acquisition Order / Contract Number and option details.

Copy of the MVDO (if applicable).

Government Sponsor contact information.

OEM Vendor primary point of contact.

Vendor Kick-Off Guidance:

Sponsor delivers the official ATTLA compliance checklist and the Technical Data Package template to the OEM vendor.

ATTLA acknowledges project opening and confirms the aircraft airframes targeted for certification (, , ).

Phase 2: In-Production Collaboration and Technical Checks Throughout manufacturing, the Government Sponsor and OEM collaborate to evaluate Work-in-Progress (WIP), Finite Element Analysis (FEA), 3-view CAD drawings, and prototype fitment.

Critical Geometry & Engineering Verification Checklist The OEM and Sponsor must verify the following parameters against the ATTLA Universal Data Spreadsheet:

☐ Approach Angle: Front clearance angle during aircraft ramp transition.

☐ Ramp Breakover Angle: Underside ground clearance over aircraft ramp crest.

☐ Departure Angle: Rear clearance angle during transition off loading ramps.

☐ Maximum Height Profile: Height, longitudinal station, and identity of the highest physical projection.

☐ Significant Projections: Dimensional coordinates of mirrors, exhaust stacks, winches, pintles, or brush guards.

☐ Individual Axle Curb Weights: Unloaded scale curb weight measured per axle.

☐ Wheelbase & Overhang: Centerline wheelbases, front overhang, and rear overhang dimensions.

☐ Rear Suspension Articulation: Unloaded vertical axle articulation travel under curb weight.

☐ Rear Axle Spacing: Longitudinal distance between multi-axle / tandem / tridem clusters.

☐ Axle & Suspension Structural Margin ():

Verify front axle rating vs. .

Verify rear axle rating vs. .

Verify front suspension rating vs. .

Verify rear suspension rating vs. .

☐ Driveline Integrity on Axle Stop Removal: If axle bump stops must be removed for aircraft crest clearance, verify the driveline remains fully intact, seated, and operational without binding across maximum ramp angles.

☐ Tiedown Provision Geometry & Ratings: Verify provision configuration, directional pull envelope, and structural attachment conform to MIL-STD-1791D (Para 5.3.3.2) and MIL-STD-209K.

Design Interchanges: ATTLA engineers may offer virtual technical assistance (via Microsoft Teams or VTC at no charge) during product development upon sponsor request. On-site ATTLA engineering participation requires travel funding from the requesting procurement office.

Phase 3: Technical Data Package (TDP) Assembly and Submission Upon physical completion of the first production unit, the OEM contractor submits the completed TDP directly to the Government Sponsor's designated mailing address.

Mandatory TDP Elements (per MIL-STD-1791D Para 6.4) ATTLA Universal Data Spreadsheet: Fully populated tabs matching equipment type, using standard naming syntax (e.g., Truck Stake 2-Door 20 Foot Bed 30T).

Dimensional & Visual Data: 3-view dimensioned CAD drawings, high-resolution annotated photographs, and physical envelopes.

Structural Substantiation & Load Calculations:

Complete calculation package detailing engineering assumptions, material specifications, and force balance diagrams.

Structural proof showing compliance of cargo and equipment tiedown provisions under maximum dynamic g-loading.

Proposed Tiedown Pattern: Detailed restraint scheme illustrating chain angle configurations for each cargo aircraft type.

Data Plate Verification: Photographic evidence of a permanent design data plate affixed to the vehicle/trailer indicating certified lifting and tiedown ratings (MIL-STD-209K).

Package Vetting and Forwarding Sponsor receives OEM data package and verifies complete documentation.

Sponsor conducts quality audit to ensure all technical fields, drawings, and calculations are present.

Sponsor officially submits the vetted TDP to ATTLA (ATTLA@us.af.mil) on behalf of the contractor.

Phase 4: ATTLA Review, Analysis, and Certification [Complete TDP Submitted] ──> [ATTLA Technical Analysis] ──> [Resolve Inquiries/RFI] ──> [Approval Memo: <= 60 Days] Analytical Review:

ATTLA performs a detailed engineering analysis of vehicle geometry, axle loading, floor contact pressure, aircraft interior clearance envelopes, and tiedown restraints at no charge to the federal sponsor.

Actual and estimated weights are evaluated against MIL-STD-1791D criteria.

Deficiency Resolution (If Applicable):

If requirements are unmet or data is incomplete, ATTLA provides written notice of rejection with specific remediation instructions.

Sponsor coordinates with OEM to execute design revisions, update calculations, or revise loading procedures.

Certification Memo Issuance:

Once all compliance criteria are met, ATTLA issues the official Air Transportability Certification Memo within 60 calendar days of receiving an acceptable, complete technical package.

The memo defines all approved airframes, flight configurations, shoring requirements, and tiedown schemes.

Phase 5: Post-Certification Verification, Delivery, and Closeout Factory Acceptance Inspection & Scale Weighing:

Contractor furnishes the ATTLA Certification Memo to the GSA Industrial Operations Analyst (IOA).

Contractor provides a certified commercial scale weight ticket showing individual curb weights for all axles on the completed build.

GSA IOA Verification Rule:

The GSA IOA inspects the equipment to verify physical conformance with the certification memo.

The IOA verifies that loaded axle weights do not exceed 80% of rated capacity:

Distribution of Certification:

Contractor supplies the approved ATTLA certification memo with the first production unit.

Sponsor forwards copies of the final certification to Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC) branches (EX2, EX4, and/or EX5 as applicable).

Copy retained in project historical files.

5. Non-Standard Workflows A. Delivered / Fielded Assets Lacking ATTLA Certification When equipment or ground vehicles have already been delivered without an Air Certification Memo, the following remediation procedure is enforced:

[Uncertified Asset Discovered] [Sponsor & Acquisition Source Direct OEM] [Option A: Retrieve Asset] [Option B: Local Facility] (OEM retrieves asset back to factory) (OEM arranges certified local retrofit) [OEM Executes Modifications] [Sponsor Audits Changes] [Submit Retrofit TDP to ATTLA] [ATTLA Issues Certification] Direction to OEM: The Government Sponsor, through the Acquisition Source (GSA/DLA), issues formal direction to the OEM to correct the deficiency via either:

Physical retrieval of the delivered vehicle back to the manufacturing plant; or Contracting and overseeing an authorized local repair facility to perform required retrofits.

Modification Completion & Notice: OEM advises the Sponsor in writing once modifications are complete.

Resubmission: Sponsor inspects physical modifications, updates the TDP, and submits the package to ATTLA for formal evaluation and certification memo issuance.

B. Special Assessment: Physical Test Loading and SDDCTEA Pull Testing

1. Physical Flight Test Loading (Uncertain Transportability) Applied when computational engineering analysis cannot conclusively establish loading clearances or structural margins.

Test loadings are scheduled as Special Airlift or Transport Missions (SAAM) requiring a formal test report.

Funding & Coordination: The purchasing customer / Government Agency Sponsor is responsible for formally requesting the test load mission and covering all associated airlift and personnel costs.

2. SDDCTEA Structural Analysis & Testing (MIL-STD-209K) Lead Time: OEM must supply provision dimensional data, material specifications, and structural finite element results to SDDCTEA at least 90 days prior to scheduled physical provision testing.

Objective: Upfront analytical modeling reduces destructive testing risks and may eliminate the requirement for physical pull testing if margins are sufficient.

Agency Coordination:

Surface Deployment and Distribution Command Transportation Engineering Agency (SDDCTEA), Newport News, VA (Phone: (757) 599-1113, Email: dpemail@tea.army.mil).

Aberdeen Test Center (ATC) for physical testing services.

6. Vehicle Configuration Reduction Criteria (1 Man-Hour Rule) If an equipment item must be reduced in size or height to fit cargo door envelopes:

Tool & Time Thresholds:

Mechanically attached (non-welded, non-riveted) components may be removed or relocated using standard hand tools.

Total removal, relocation, and tiedown time must not exceed 1 man-hour.

Reassembly time back to fully operational configuration must not exceed 1 man-hour.

Operational Constraints:

Self-Mobility: Vehicle self-mobility must remain intact in its reduced configuration (must be capable of driving on and off aircraft).

Stowage: Dedicated onboard tiedowns and stowage brackets for removed components must be integrated on the vehicle.

Shoring: The vehicle must load without auxiliary wood shoring unless structurally unavoidable.

Delivery State: The vehicle must never be delivered to the Government end-user in its reduced configuration.

7. Directory of Agency Contacts and Resources

Email: ATTLA@us.af.mil USAF Fixed-Wing Aircraft Air Transportability Evaluations & Certification

Phone: (757) 599-1113 Email: dpemail@tea.army.mil Surface Transportability, Rail Certification, and Provision Design Review

5.1 Aircraft Compatibility

The trailer shall be capable of internal aerial delivery in U.S. Air Force C-130E/H/J, C-17, and C-5 aircraft at maximum trailer curb weight in accordance with MIL-STD-1791D (Change 1), MIL-STD-1366E, and DoDI 4540.07.

5.2 Air Transportability Test Loading Agency (ATTLA) Certification Process Sponsorship: NAVFAC EXWC will serve as the Government Agency Sponsor and will submit an official Sponsor Letter to ATTLA (Wright-Patterson AFB) within 10 business days of contract award.

Submittal Package: The contractor shall deliver a complete technical data package conforming to MIL-STD-1791D paragraph 6.4, consisting of:

Completed ATTLA Universal Data Spreadsheet.

Scaled engineering three-view dimensional drawings and CAD files.

Structural Finite Element Analysis (FEA) and tiedown pattern calculations demonstrating restraint capability.

Critical mobility angles: approach angle, ramp breakover angle (minimum 15-degree ramp cresting capability), departure angle, and axle ground clearances.

Suspension travel, curb weights by axle, and verified axle ratings (confirming rated capacities exceed curb load by at least 1.25x).

Certification Memo: Final Government vehicle acceptance is contingent upon receipt of the formal ATTLA Certification Memorandum.

Certified Scale Weight Ticket: The contractor shall provide a certified weight ticket showing axle weights and total curb weight verifying that loaded axle configurations do not exceed 80% of rating during ramp transitions.

5.3 Lifting and Tie-Down Provisions

Design Standards: Integral lifting and cargo/chassis tie-down provisions shall fully comply with MIL-STD-209K and MIL-STD-1366E.

Lifting Rings: Weld-on recessed lift points positioned to allow four-point sling crane hoisting without the use of a spreader bar.

Tie-Down D-Rings: High-strength forged D-rings welded to main structural members. Each D-ring shall have its working capacity permanently cast or embossed on the body of the hardware.

Protective Features: Drainage holes in tie-down and lift ring pockets shall be shielded to prevent chain hooks from impacting adjacent electrical harnesses, air piping, or brake valves.

6.0 PAINT, COATINGS, AND MARKINGS

6.1 Surface Preparation and Coatings

Substrate Preparation: Prior to coating application, all steel surfaces shall be degreased, descaled, and blasted to remove rust, weld slag, and mill scale. Edges shall be radiused. Fasteners and cross-members shall be sealed.

Primer: High-solids, two-part epoxy primer (or zinc-rich primer) applied to a minimum dry film thickness (DFT) of 4.0 mils.

Topcoat: Polyurethane non-CARC topcoat applied to a minimum DFT of 4.0 mils.

Color: Flat lusterless green (Color Code #34094, SAE AMS-STD-595A).

Total Coating Thickness: Combined primer and topcoat thickness shall be no less than 8.0 mils DFT.

Underbody Corrosion Protection: A resilient, non-tacky undercoating (Tectyl, LINE-X, or approved equivalent) shall be applied across lower chassis flanges, cross-members, suspension hangers, and wash-down areas.

Non-Skid Deck Coating: Non-skid grit abrasive coating or heavy-duty grip tape shall be applied to all exposed horizontal metal walking surfaces.

6.2 Identification, Registration, and Placards

Markings shall be applied via stencil or laser-cut/engraved metal plates using matte black paint. Alternative decal applications require prior Government approval.

6.3 Data Plates

All identification, shipping, and instruction plates shall be stamped, engraved, or photo-etched non-ferrous metal securely riveted to the trailer frame. Adhesive labels/stickers are prohibited. Data plates shall contain:

Vehicle Nomenclature (Trailer Stake Breakbulk 34T) Manufacturer Name, Make, Model, and Serial Number (VIN) U.S. Navy Registration Number (USN) & National Stock Number (NSN) Vehicle Curb Weight, Payload Rating, GVWR, and GCWR (in lbs. and kg) Date of Delivery (left blank until formal DD Form 250 sign-off) Contract Number and Contracting Agency (NAVFAC EXWC) Warranty Coverage Term (Months / Miles)

7.0 TECHNICAL DOCUMENTATION AND MANUALS

7.1 Manual Deliverables & Formats

All publications shall be written in English. The Government retains unlimited rights to reproduce and distribute manual content for internal operational and maintenance use. Manuals shall be provided in both searchable PDF format (on CD-ROM or secure web portal) and hard copy.

Standard COTS Manuals (30–45 Days ARO): One (1) preliminary set of standard COTS manuals and parts catalogs for early logistical planning.

Draft Technical Manuals (150–180 Days ARO): One (1) comprehensive draft set including detailed component cut sheets, schematic diagrams, and line-item parts lists submitted to NAVFAC EXWC (Attn: EXPO EX22 Ground Vehicles).

Final as-Built Manuals (Post-First Article Acceptance): Incorporating all first-article engineering changes, delivered with each trailer unit:

Operator's Manual (safety, operational controls, daily pre-checks).

Service and Overhaul Manual (troubleshooting, preventive maintenance schedules, hydraulic/electrical schematics).

Illustrated Parts Breakdown (IPB) down to the line-item level with OEM part numbers and CAGE codes.

Line Setting Ticket / Build Sheet listing VIN and major component serial numbers.

8.0 VERIFICATION, QUALITY ASSURANCE, AND TESTING

8.1 Design Reviews and Verification Gates

The contractor shall host technical reviews with NAVFAC EXWC and GSA representatives:

Post Award Conference (PAC): Award + 5 days.

Verification Design Review (VDR): Award + 60 days.

Final Design Review (FDR): Award + 90 days (establishes production baseline freeze).

Verification compliance methods are classified as follows:

ET (Engineering Test): Quantitative instrumental test reports (e.g., brake efficiency, sound, temperature). Detailed test plans submitted within 45 days ARO.

COC (Confirmation of Compliance): Engineering analysis, mill test reports, FEA modeling, or vendor component certifications.

QAPVT (Quality Assurance Performance & Verification Test): Qualitative functional pass/fail verification of mechanical and electrical systems.

8.2 Pre-Service and Vocational Inspection

TMC RP 803 Inspection: Every production trailer shall undergo and pass a documented pre-service inspection conforming to TMC RP 803. The signed inspection certificate shall accompany the vehicle build package.

Workmanship Standards: Units shall be inspected for freedom from sharp burrs, weld defects, paint blisters or orange peel, harness pinching, fluid leaks, and component misalignment.

8.3 Operational Testing (First Article Testing - FAT)

Testing Location: The First Production Unit shall be delivered to the Navy test facility in Gulfport, MS, for operational verification.

Testing Scope (5-Day Nominal Duration):

Coupling, physical interface, and turning swing tests with all designated prime movers.

Live-load container tests verifying TRICON, 20-ft ISO, and 40-ft ISO lock positions.

Cross-country and rough-road terrain testing (paved, gravel, cobblestone, off-road washboard surfaces).

Ramp cresting verification up a 15-degree ramp without suspension strike or frame contact.

Environmental operation across an ambient envelope of -25°F to 130°F.

Corrective Actions: Any failure, obstruction, or defect encountered during FAT shall be rectified by the contractor at no cost to the Government prior to final acceptance and release of full production.

9.0 WARRANTY AND TECHNICAL SUPPORT

9.1 Warranty Terms

Coverage Period: The contractor shall provide a comprehensive 60-month (5-year) bumper-to-bumper warranty covering all structural components, running gear, electrical systems, and auxiliary equipment against defects in materials, design, and workmanship.

Pass-Through Terms: Any vendor or subcontractor warranty exceeding 60 months shall pass directly to the Government.

Effective Date: Warranty coverage commences upon official destination acceptance on DD Form 250.

9.2 Technical Support and Field Service

Service Response: Initial response to warranty repair inquiries shall occur within three (3) business days. An emergency after-hours telephone line shall be maintained.

Repair Facilities & Parts Distribution: The contractor shall maintain certified service repair facilities within CONUS. Replacement warranty parts shall be expedited via priority overnight or express courier at the vendor's expense.

10.0 OPTIONAL REQUIREMENTS

10.1 NATO STANAG 4009 Gooseneck Option

When exercised, the trailer gooseneck shall provide a minimum swing clearance radius of 90.5 in. to guarantee full articulated compatibility with NATO tow tractors conforming to STANAG 4009.

10.2 New Equipment Training (NET)

When optioned, the OEM shall deliver two (2) separate 2-day training courses for up to 15 operator/maintenance personnel (plus 6–8 government auditors) at a designated Navy facility.

Day 1 (0.5 Day Classroom, 0.5 Day Practical): System overview, manual review, controls, and safe operating principles.

Day 2 (Full Day Hands-On): Preventive maintenance, troubleshooting, parts removal/replacement, and brake/suspension servicing.

Deliverables: Training syllabus, student guides, PowerPoint slides, and video instructional media submitted 45 days prior to class execution.

11.0 DELIVERY AND SHIPPING PROVISIONS

11.1 Shipping and Stacking

Trailers shall be shipped FOB Destination to designated delivery points. The contractor may stack trailers wheels-down for bulk highway transit; however, the contractor shall be fully responsible for offloading, unstacking, and presenting individual trailers with wheels on the ground for final destination inspection.

NAVFAC EXWC Point of Contact:

NAVFAC Engineering and Expeditionary Warfare Center (NFEXWC), 1000 23rd Ave, Bldg. 1100, Port Hueneme, CA 93043 Attn: Sean Nelson (EX223) | Email: sean.r.nelson1.ctr@us.navy.mil

· Will provide location (vendor must verify 90 days prior to shipment)

11.2 Delivery Site Access and Operations

Base Security & Access: Delivery drivers must carry REAL ID-compliant identification (or valid TWIC / Military access credentials). Driver CDLs marked "NOT FOR FEDERAL IDENTIFICATION" will be denied base entry.

Notice of Delivery: The contractor shall notify the designated NAVFAC EXWC Point of Contact at least 30 days prior to shipment, with final schedule confirmation two (2) weeks in advance.

Operating Hours: Deliveries are accepted Monday through Thursday, 0800 to 1430 local time. Deliveries on Fridays, weekends, and federal holidays are not permitted.