Purchase_Description__USN_EXWC_400G_Potable_Water_Tank_Trailer_formated.docx

PURCHASE DESCRIPTION

400-GALLON POTABLE WATER TANK TRAILER (2-WHEEL)

Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC) Document Identifier: Purchase Description 400 Gallon Potable Water Tank Trailer

Revision: 9/22/2026

SECTION 1: INSTRUCTIONS AND NOTES TO OFFERORS

1.1 Exceptions to Specification

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 the contract. Any exception deemed acceptable by the Government shall apply only to the specific item or requirement cited and shall not extend to any other requirement.

1.2 "Or Equal" Evaluations An Offeror offering items other than brand name items identified herein, when an "or equal" may be acceptable, shall furnish with their proposal all technical data, product descriptions, and specifications necessary to ensure that a determination may be made as to the equality of the product offered (reference FAR Clause 52.211-6, "Brand Name or Equal").

1.3 Proposal Submittal Requirements

The Offeror shall submit the following items with their proposal:

Letter of Exceptions: A detailed explanation, submitted in a separate letter, of any exceptions to the specification, including alternate equipment proposed or an affirmative declaration of comprehensive understanding with zero exceptions taken.

Preliminary Engineering Drawings: Detailed drawings showing:

Layout views of the proposed trailer, including all equipment locations and basic dimensions verifying compliance with the requirements herein.

Exterior front, rear, and side elevations with overall dimensions.

Estimated curb weight and Gross Trailer Weight Rating (GVWR) / Gross Axle Weight Rating (GAWR).

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

Customer and Technical Support Plan: Detailed procedures for customer service, warranty processing, and technical support access via email, telephone, and web portal.

SECTION 2: SCOPE AND APPLICABLE DOCUMENTS

2.1 Scope and Background

Naval Facilities Engineering and Expeditionary Warfare Center (NAVFAC EXWC) requires the replacement of an aging fleet of trailers based on current mission and support requirements. NAVFAC EXWC has documented requirements to address shortcomings of the current fleet that at a minimum comply with Military (MIL), American Welding Society (AWS), and Society of Automotive Engineers (SAE) standards for tactical and commercial trailers. Compliance with these government and non-government standards introduces commonality with other military, Department of Defense (DoD), and civilian equipment, allowing fleet and joint operations to utilize capabilities to their fullest. The trailers will support operational readiness and functionality in austere, expeditionary conditions.

2.2 Applicable Documents

The following documents of the issue in effect on the date of solicitation form a part of this specification to the extent specified herein:

2.2.1 Federal Standards and Regulations

Code of Federal Regulations (CFR):

49 CFR Part 393 – Parts and Accessories Necessary for Safe Operation (FMCSR) 49 CFR Part 571 – Federal Motor Vehicle Safety Standards (FMVSS) Note: DOT publications may be accessed at www.access.gpo.gov or obtained from the Superintendent of Documents, U.S. Government Publishing Office, Washington, D.C. 20402.

2.2.2 Military and Federal Specifications

MIL-STD-209K: Department of Defense Interface Standard for Lifting and Tie-Down Provisions MIL-STD-1366E: Interface Standard for Transportability Criteria MIL-STD-1791D (Change 1): Department of Defense Interface Standard for Internal Aerial Delivery in Fixed Wing Aircraft MIL-HDBK-1791: Designing for Internal Aerial Delivery in Fixed Wing Aircraft A-A-50271: Plates, Identification, Marking, and Information USAF Memorandum (19 Jan 2024): Exemption from ATTLA Certification per ATTLA AFI 24-605, Volume 2, Paragraph 3.54

2.2.3 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: Electric Terminals – Eyelet and Spade Type SAE J575: Tests for Motor Vehicle Lighting Devices and 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: Front and 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

2.2.4 Sanitation and International Standards

NSF/ANSI Standard 61: Drinking Water System Components – Health Effects ASTM A967 / ASTM A380: Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts ASTM B117 / ASTM D1654: Salt Spray (Fog) Testing and Evaluation of Painted Specimens ASTM D3170: Standard Test Method for Chipping Resistance of Coatings ISO 668: Series 1 Freight Containers – Classification, Dimensions, and Ratings NATO STANAG 4009: Interface Geometry, Tractors and Semi-Trailers Detailing Tow Vehicle/Trailer Interface NATO STANAG 4101: Towing Attachment Lunette Interface Standard TMC RP 803: Pre-Service Trailer Inspection, Technology & Maintenance Council, American Trucking Associations

2.3 Order of Precedence

In the event of a conflict between the text of this purchase description and the references cited above, the most stringent requirements, as determined by the Government, shall take precedence. Nothing in this purchase description, however, supersedes applicable Federal and State safety laws and regulations.

SECTION 3: TECHNICAL AND CONFIGURATION REQUIREMENTS

3.1 General Description and Mission Profile

The trailer shall be a heavy-duty, single-axle, two-wheel, 400-gallon potable water tank trailer fabricated with a 304L stainless steel tank. The trailer shall couple with standard military prime movers to transport, distribute, resupply, and store potable (drinking) water in austere and tactical environments worldwide.

3.2 Dimensions and Capacities

Payload Capacity: 400 US gallons (minimum) of potable water operable on primary highways, secondary roads, and off-road unimproved terrain.

Overall Length: Not to exceed 165 inches.

Overall Width: Not to exceed 95 inches.

Overall Height (Empty): Not to exceed 84 inches.

Ground Clearance: Adequate ground clearance and departure/approach angles to prevent frame, axle, or jack contact during severe cross-country traversal and Roll-on/Roll-off (Ro-Ro) loading.

3.3 Chassis Frame, Fenders, and Bumper

Frame: Ruggedized, welded single-axle steel chassis frame engineered to support dynamic sloshing loads of 400 gallons of liquid.

Fenders: Two (2) heavy-duty steel fenders (one over each wheel). Each fender shall support a static load of 400 pounds (representing two service personnel with full gear) with zero permanent deformation.

Integrated non-slip coated top walking surface (grip tape, adhesive strips, or welded plates are strictly prohibited).

Integrated void footstep built into the forward face of each fender.

Rear Bumper: Heavy-duty integrated steel rear bumper protecting rear tank piping, valves, and lighting.

3.4 Dolly Jack, Landing Gear, and Lunette Tow Interface

Dolly Jack / Landing Gear:

Heavy-duty, retractable, manually operated top-wind dolly jack.

Equipped with one (1) 3-inch wide by 10-inch diameter steel pivoting caster wheel capable of supporting the fully loaded trailer in deep sand, mud, and snow.

Stowable and lockable in a horizontal position providing a minimum 15-degree angle of approach for Ro-Ro loading.

Secured via heavy-duty tethered quick-release and keeper pins (tall tower designs prohibited).

Capable of safe, full-load operation and manual movement by a single operator.

Lunette Tow Eye:

Height-adjustable lunette eye accommodating tow pintle heights from 24 to 42 inches above ground level without hand tools (conforming to NATO STANAG 4101).

Shall be rigid and completely free of backlash or play once locked in position.

3.5 Potable Water Tank Architecture

Tank Shell Construction:

Double-wall, insulated, sanitary grade T-304L stainless steel construction.

Tank shell, heads, and all internal components shall be fabricated from 100% new, unused stainless steel.

Internal surface shall be chemically passivated in strict accordance with ASTM A967 / ASTM A380.

Shell shall be 100% watertight and free from leaks under all operating and dynamic sloshing conditions.

Sacrificial Anode: Equipped with one (1) aluminum sacrificial anode rod suitable and certified for potable water storage.

Liquid Level Sight Gauge:

Visible, shatterproof dial-indicator level gauge with internal float mechanism and protective cover, mounted on the front tank head.

Graduated increments: Empty (E), 1/4, 1/2, 3/4, Full (F).

Gauge face shall be UV-resistant, non-fogging, non-clouding, and easily field replaceable.

Manhole Assembly:

One (1) 20-inch (minimum) diameter stainless steel manhole with hinged cover opening from front to rear.

Heavy-duty stainless steel block twist latch handle, heavy-gauge hinges, and positive hinge lock/stop mechanism holding the cover securely open at a minimum of 135 degrees.

Padlock hasp provision allowing the lid to be locked in the closed position with a Government-furnished padlock.

Heavy-duty food-grade sanitary gasket bonded firmly to the manhole cover (collar-mounted gaskets are prohibited).

Pressure-relief vacuum/breather vent integrated into the manhole lid.

Tank Access Handles: Four (4) vertical 12-inch stainless steel grab handles:

Two (2) handles positioned on the tank shell directly above the front fender footsteps (one per side).

Two (2) handles positioned adjacent to the manhole for safe top-of-tank operator access (one per side).

Tank Mounting & Isolation:

Tank secured to the chassis frame via four (4) spring-loaded mounting brackets providing stress-fracture isolation during severe chassis flexing.

Resilient isolation barriers installed between tank stainless steel bands and the chassis steel frame.

Tank shall be easily removable without cutting or damaging structural chassis members.

Tank Insulation System:

Minimum 2.0 inches of 1.0 lb/cu.ft density styrene insulation (or approved equivalent thermal barrier).

Jacketed in minimum 20-gauge stainless steel sheet completely wrapping the barrel and tank heads.

Heads lock-seamed to the barrel jacket; sanitary watertight sealants applied around manhole collars and piping penetrations.

Metal insulation data plate permanently affixed to front head identifying insulator name, material used, date insulated, and contract number.

3.6 Sanitary Plumbing and Distribution System

All water storage, manifold, piping, and valve components shall be 100% compliant with NSF/ANSI Standard 61 for potable water service. All piping and valves shall be stainless steel (no alternative materials permitted). Each connection shall utilize sanitary clamp couplings with food-grade sanitary gaskets.

Bottom Tank Cleanout: One (1) 2.0-inch stainless steel cleanout drain with cam-lock adapter, tethered cap, and lock provision located at the bottom aft center of the tank shell.

Front Outlet Manifold: One (1) 2.0-inch stainless steel master shut-off valve and distribution manifold mounted on the front center chassis.

Rear Discharge Outlet: One (1) 2.0-inch stainless steel butterfly discharge valve with locking lever handle, cam-lock fitting, and tethered lock cap located at the rear center. Water discharge shall be oriented to prevent splashing onto wiring harnesses or lighting fixtures.

Side Dispensing Faucets:

Curbside (Passenger Side): Two (2) 3/4-inch standard self-closing sanitary stainless steel drum dispensing faucets.

Streetside (Driver Side): Two (2) 3/4-inch standard self-closing sanitary stainless steel drum dispensing faucets, plus one (1) 2.0-inch stainless steel cam-lock quick-fill adapter with tethered locking cap centered between the faucets.

Dispensing Enclosures: Side faucets housed within weatherproof, lockable stainless steel enclosures with heavy-duty continuous hinges. Enclosure tops stenciled NO STEP in 1-inch matte black letters. Adequate handle clearance shall be provided to prevent inadvertent valve actuation when the enclosure door is latched.

3.7 Running Gear, Axle, and Suspension

Axle: Single heavy-wall commercial/tactical round axle painted to match chassis undercarriage.

Suspension: Heavy-duty dual multi-leaf spring suspension system engineered to isolate the potable water tank from shock, vibration, and dynamic twisting during off-road operation.

Wheel Ends: Oil bath or heavy-duty sealed bearing hubs with visible fluid level indicators.

3.8 Braking System

Brake Architecture: Dual-line air-over-hydraulic service brake system actuated by towing prime mover air pressure, sized to match the full axle GVWR.

Lines & Fittings: Securely clipped with rubber-cushioned stainless steel clamps; all lines free of leaks and protected from trail debris.

Emergency Breakaway Protection: Fully compliant with 49 CFR § 393.43; service brakes apply automatically upon trailer separation from the towing vehicle. Static spring brake set when trailer is uncoupled from air supply.

Manual Parking Brake: Driver-side mechanical hand lever capable of holding the fully laden 400-gallon trailer stationary on a 30% ascending or descending grade, with manual release for level ground maneuvering.

Pneumatic Interface: Equipped with dummy stowage gladhands protecting gladhand seals when uncoupled.

3.9 Wheels and Tires

Wheels: Two (2) solid steel single-piece hub-piloted wheels with heavy-duty lug nuts. Finished in lusterless matte black.

Tires: First-line, commercial-grade, non-retread all-terrain radial pneumatic rubber tires rated for 100% full GVWR. Brand and tread pattern matching. Tire manufacture date codes shall not exceed one (1) year at delivery.

3.10 Electrical and Lighting Systems

Operating Voltage: Dual 12V/24V DC multi-voltage commercial LED lighting system (operational range 6–28V DC).

Tactical & Commercial Connectors:

Standard 12-pin NATO tactical intravehicular receptacle (24V).

Standard 7-way SAE J560 commercial round-pin receptacle (12V).

Lighting Functions: Fully sealed DOT stop/turn/tail lamps, side markers, retroreflective lenses, and military blackout lighting.

Wiring System: Fully sealed, modular wiring harnesses enclosed in protective heavy-duty convoluted conduit. Secured via bolt-through cushioned steel brackets; pass-throughs fitted with neoprene grommets. Zip ties, tape, and open wire hangers are prohibited.

3.11 Auxiliary Equipment and Tools

Safety Chains: Two (2) heavy-duty welded steel safety chains rated at 15,000 lbs (minimum) each, equipped with positive safety latch hooks.

Toolbox / Storage Compartment: One (1) heavy-gauge steel storage box with lockable compression latch and continuous hinge mounted at the rear center. Holds wheel tools, gladhand jumpers, and accessories.

Forklift Pockets: Four (4) full-width tube-style forklift pockets (4 inches High by 10 inches Wide) integrated beneath the frame:

Two (2) fork openings on driver side, two (2) on passenger side.

Internal hardware oriented facing outward to prevent fork tine snagging.

Integrated safety footwells with anti-slip perforated safety grating across pocket openings.

Pockets engineered to protect under-chassis air lines, tank drain valves, and wiring.

Wheel Chocks: Two (2) rubber wheel chocks tethered and securely mounted in brackets above the forklift pockets.

Tools: Complete wheel removal set including breaker bar, lug wrench handle, appropriate sockets, and heavy-duty hydraulic bottle jack.

Mud Flaps: Heavy-duty black rubber mud flaps without commercial logos or markings.

SECTION 4: PERFORMANCE AND OPERATIONAL REQUIREMENTS

4.1 Environmental and Roadway Capabilities

The fully laden 400-gallon trailer shall operate safely without degradation across all tactical and commercial environments:

Highway Speed: Sustained operation at 50 mph (80.5 km/h) on paved highways and primary roads.

Cross-Country Speed: Sustained operation at 20 mph (32.2 km/h) across unimproved secondary roads, cobblestone, gravel, and severe terrain.

Tracking Stability: Trailer shall track true behind the prime mover without fishtailing, sliding, or swaying. Straight-line lateral deviation shall not exceed 3.0 inches to either side of prime mover track on smooth paved surfaces.

Side Slope Stability: Fully loaded trailer shall negotiate 20% side slopes at speeds up to 20 mph without sliding or rollover.

Deep Water Fording: Fully sealed running gear, bearings, and brake actuators capable of continuous submergence and fording in 30 inches of fresh or salt water for 15 minutes minimum while towed. Seals shall prevent water intrusion and lubricant wash-out.

Operating Temperatures: Operational from -25°F (-31.7°C) to 130°F (54°C). The insulated tank shell shall maintain potable water in a liquid state without freezing during transit down to 32°F.

4.2 Air Transportability and Certification Status

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

USAF Air Transport Exemption: In accordance with USAF Memorandum dated 19 Jan 2024, formal ATTLA air certification testing is not required for this 400-Gallon Water Tank Trailer variant pursuant to ATTLA AFI 24-605, Volume 2, Paragraph 3.54.

Aircraft Compatibility: The trailer shall be dimensionally and structurally capable of internal aerial delivery aboard USAF C-130, C-17, and C-5 transport aircraft in a fully loaded condition in accordance with MIL-STD-1366E and MIL-STD-1791D.

Surface Transportability (SDDCTEA): Rail, highway, and marine transportability criteria shall conform to SDDCTEA guidelines. Rated axle/suspension capacities shall be at least 1.25 times the curb weight load.

4.3 Lifting and Tie-Down Provisions (MIL-STD-209K)

Provisions: Sized, tested, and certified in accordance with MIL-STD-209K for lifting (crane hoist without spreader bar) and tiedown restraint.

Tie-Down Markings: Marked adjacent to each point with TIE DOWN in 1-inch matte black stencil.

Lift Point Markings: Marked adjacent to each point with LIFT HERE in 1-inch matte black stencil.

Transportation Data Plate: Etched non-ferrous plate conforming to MIL-STD-209K and A-A-50271 providing a lifting sling diagram, center of gravity silhouette, and rated tiedown capacities.

SECTION 5: COATINGS, FINISH, AND CORROSION CONTROL

5.1 Surface Preparation

All chassis frame surfaces, underbody components, and steel assemblies shall be thoroughly cleaned, degreased, and abrasive blasted to remove all rust, mill scale, weld slag, and contaminants prior to primer application.

5.2 Paint System Architecture

Primer Basecoat: Two-part non-CARC epoxy primer or zinc-rich primer applied to a minimum Dry Film Thickness (DFT) of 4.0 mils.

Polyurethane Topcoat: Two-part industrial non-CARC polyurethane coating applied to a minimum DFT of 4.0 mils.

Color: Flat lusterless Olive Drab Green (Color #34094 per SAE AMS-STD-595A).

Total Dry Film Thickness: Minimum combined thickness of 8.0 mils DFT.

Corrosion Resistance: Withstands 240 hours of salt spray testing per ASTM B117 / ASTM D1654 without blistering or rusting; gravel chip resistant per ASTM D3170.

Underbody Protection: Heavy-duty anti-corrosion wear undercoating (Line-X, Tectyl, or approved equivalent) applied to lower frame members, outer webs, and undercarriage wash-down areas.

Non-Skid Coating: Factory-applied high-traction grit coating applied to all horizontal frame surfaces, fender tops, and footwells.

SECTION 6: MARKINGS, IDENTIFICATION, AND DATA PLATES

6.1 Standardized Stencil Schedule

All markings shall be applied using solvent-resistant matte black paint (Color #37038 per SAE AMS-STD-595A) in commercial stencil typography.

6.2 Visual Reference Figures

Figure 1: Faucet Enclosure "NO STEP" Stencil – Matte black stencil centered on protective box lid.

Figure 2: Fender Tire Pressure Stencil – "TP - 80 PSI" positioned on fender vertical lip above wheel center.

Figure 3: Lift and Tie-Down Markings – Lift/tie-down provisions with corresponding 1-inch identification stencils.

Figure 4: Lateral Tank Registration Stencil – 3-inch "U.S. NAVY" and registration number centered on tank barrel.

Figure 5: Rear Tank Registration Stencil – 3-inch markings placed horizontally across the rear tank head.

6.3 Identification and Data Plates

A stamped or etched non-ferrous metal data plate shall be riveted to the trailer frame, detailing:

Nomenclature: TRAILER, TANK, WATER, POTABLE, 400-GALLON, 2-WHEEL Manufacturer Name, Make, Model, and Serial Number U.S. Navy Registration Number (USN) National Stock Number (NSN) Curb Weight, Max Payload (400 Gal Water), and Gross Vehicle Weight Rating (GVWR) Date of Delivery (retained blank until formal DD Form 250 acceptance) Contract Number and Contracting Agency (NAVFAC EXWC) Warranty Terms (60 Months / Unlimited Miles)

6.4 GSA Form 1398

The contractor shall affix one (1) copy of GSA Form 1398 (GSA Purchased Trailer) upon successful completion of Government origin inspection.

SECTION 7: QUALITY ASSURANCE, WORKMANSHIP, AND VERIFICATION

7.1 Workmanship and Rejection Criteria

Trailers shall be fabricated in strict accordance with the highest commercial and military standards. The presence of any of the following defects shall constitute cause for immediate Government rejection:

Sharp, rough, or unfinished edges, burrs, or corners on walking and service areas.

Non-uniform body panels; unsealed joints or cracks.

Inadequate metal preparation, rust, mill scale, or paint blisters, runs, sags, craters, or voids.

Cracks, dents, or structural deformities in frame, tank shell, or fenders.

Incomplete, porous, or undercut welds not conforming to AWS and ASME Section IX standards.

Leaks of any kind in the potable water tank, manifold, faucets, valves, or air/hydraulic brake lines.

Misaligned fasteners, loose hinges, or unsealed appurtenances.

Use of zip ties, tape, or unapproved wire hangers to secure electrical or brake lines.

Excessive noise, vibration, or structural interference during operational road tests.

Failure to meet any specified performance parameter, dimensional envelope, or weight limit.

7.2 Verification Milestones

Compliance verification shall be executed according to the following milestone schedule:

7.3 Testing and Acceptance

Certified Scale Weighing: Every completed trailer shall be weighed on a certified scale to confirm actual unladen curb weight and axle ratings.

Pre-Service Inspection: Offeror shall perform a comprehensive pre-service inspection in accordance with TMC RP 803, with completed checklists stowed in each trailer.

Vocational & Sanitary Testing: All plumbing, dispensing faucets, cleanout ports, and relief vents shall be pressure-tested for watertight integrity, NSF 61 compliance, and proper functional operation.

Road & Fording Verification: Operational demonstration verifying highway tracking, 20% side slope stability, and 30-inch water fording capabilities.

SECTION 8: LOGISTICS, WARRANTY, AND DELIVERY

8.1 Technical Manuals and Publications

Manual Delivery Schedule:

30–45 Days ARO: One (1) COTS commercial manual set for initial support development.

150–180 Days ARO: One (1) set of Draft Technical Manuals (searchable PDF).

Final Delivery: Approved As-Built Technical Manuals (CD-ROM/digital and hard copy) delivered with each trailer.

Content: Detailed Operator, Maintenance, and Illustrated Parts Breakdown (IPB) manuals with exploded views, original part numbers, and CAGE codes.

Line Setting Ticket: Build sheet listing VIN, serial numbers, UID tag numbers, and installed components shipped with each unit.

8.2 Comprehensive Warranty

The contractor shall provide a comprehensive 60-month (5-year) bumper-to-bumper warranty starting on the date of final Government acceptance (DD Form 250).

Initial on-site warranty response within three (3) business days.

Contractor covers 100% of parts, labor, and domestic expedited freight costs.

Staged repair facilities provided within the Continental United States (CONUS).

8.3 Delivery Locations and Ship-To Addresses

Trailers shall be delivered FOB Destination in accordance with the GSA Motor Vehicle Delivery Order to the following Navy receiving activities:

NAVFAC EXWC Delivery Point of Contact:

NAVFAC Engineering and Expeditionary Warfare Center (NAVFAC EXWC) 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)

8.4 Delivery Hours and Base Access

Delivery Hours: Monday through Thursday, 0800 to 1430 local time (no deliveries on Fridays, weekends, or Federal holidays).

Base Security Notice: Delivery carriers must submit base access passes and receive approval at least two (2) weeks prior to arrival. Drivers must present valid REAL ID or TWIC credentials; commercial licenses marked "NOT FOR FEDERAL IDENTIFICATION" will be turned away.

Unstacking Requirement: Trailers must be delivered fully unstacked with wheels on the ground. Any material handling equipment (cranes, riggers, forklifts) required to offload and unstack trailers shall be furnished solely by the delivery contractor.