16--AFT FOAM
DEPT OF DEFENSE.DEPT OF THE NAVY.NAVSUP.NAVSUP WEAPON SYSTEMS SUPPORT.NAVSUP WSS PHILADELPHIA.NAVSUP WEAPON SYSTEMS SUPPORT · Response deadline: Fri, 06 Nov 2026
What the government is buying
The Naval Supply Systems Command (NAVSUP) Weapon Systems Support Philadelphia office is soliciting offers for "AFT FOAM"—a dielectric material used in aircraft fuel tank applications. The specific product nomenclature and technical requirements are classified under Federal Supply Classification (FSC) 1650, which covers aircraft hydraulic, vacuum, and de-icing system components, as well as related specialty materials.
Dielectric foams in this category typically serve as sealants, fillers, or insulation materials that prevent electrical arcing and support fuel tank integrity. NAVSUP WSS Philadelphia manages procurement for aviation-critical supplies that support Navy and Marine Corps operational readiness. See the solicitation for exact specifications, quantities, and delivery requirements.
Key facts
| Field | Value |
|---|---|
| Agency | Department of the Navy, NAVSUP Weapon Systems Support Philadelphia |
| Notice type | Solicitation |
| Solicitation number | N0038325QF377 |
| NAICS | 336413 |
| Set-aside | None (full and open competition) |
| Response deadline | November 6, 2026, 4:30 PM ET |
| Place of performance | Not specified in metadata; see the solicitation |
Who can bid
This solicitation is full and open competition with no set-aside program, meaning any responsible offeror—regardless of business size—may submit a bid. The NAICS code 336413, "Other Aircraft Parts and Auxiliary Equipment Manufacturing," has a corresponding Small Business Administration size standard that interested small businesses should verify if they intend to pursue small-business contracting advantages elsewhere in their portfolio. For this specific opportunity, however, large businesses compete on equal footing with small businesses.
Eligible bidders should be manufacturers or distributors capable of supplying materials meeting military aviation specifications. FSC 1650 items often require compliance with rigorous Qualified Products Lists (QPL), military specifications (MIL-SPEC), or specific airworthiness certifications. See the solicitation for any source approval, first article testing, or qualification requirements.
How to put together a competitive bid
Verify product qualification status. AFT foam for Navy aircraft fuel systems likely requires pre-qualification under a QPL or approved manufacturer listing. Check whether your product—or your supplier's product—already holds this qualification. Unqualified products typically require costly and time-consuming first-article testing.
Confirm supply chain traceability. Aviation-critical materials demand complete lot traceability, material certifications, and chemical composition documentation. Prepare to provide Certificates of Analysis (CoA) and manufacturer pedigree documentation.
Understand packaging and preservation requirements. Military Standard (MIL-STD) packaging for shelf-life-limited materials like specialized foams can add significant cost. Review whether the solicitation specifies Preservation, Packaging, Packing and Marking (PPP&M) per MIL-STD-2073 or commercial equivalents.
Evaluate your delivery capabilities. NAVSUP WSS contracts typically require performance-based logistics with specified delivery times to government depots or direct-to-fleet locations. Assess your ability to meet any Just-in-Time (JIT) or readiness-based sparing obligations.
Price strategically for full-and-open competition. Without set-aside protection, expect competition from established defense contractors and OEM suppliers. Analyze historical pricing for similar NSNs through tools like FPDS or GSA Advantage if available. Consider whether your firm offers advantages in lead time, minimum order quantities, or technical support.
Next steps
Read the full solicitation on SAM.gov using solicitation number N0038325QF377. The posted date was October 7, 2026; review all amendments and attachments carefully for technical data, drawings, and delivery schedules not reflected in the metadata.
Note the firm deadline: All offers must be submitted by November 6, 2026, at 4:30 PM Eastern Time. Allow buffer time for SAM.gov registration validation, technical proposal compilation, and any required representations and certifications.
View the official notice on SAM.gov →