NUT,SELF-LOCKING,HE
DEPT OF DEFENSE.DEPT OF THE NAVY.NAVSUP.NAVSUP WEAPON SYSTEMS SUPPORT.NAVSUP WSS MECHANICSBURG.NAVSUP WEAPON SYSTEMS SUPPORT MECH · Response deadline: Fri, 27 Nov 2026
What the government is buying
The Navy is soliciting offers for self-locking nuts under Federal Supply Classification 5310, which covers nuts and washers. These are specialized fasteners designed to resist loosening under vibration and torque—critical components for weapons systems, aircraft, marine equipment, and other high-stress military applications. Self-locking nuts typically employ nylon inserts, deformed threads, or other mechanical features to maintain clamping force without additional locking hardware.
This procurement falls under NAICS 332722 (Bolt, Nut, Screw, Rivet, and Washer Manufacturing). The contracting activity is NAVSUP Weapon Systems Support Mechanicsburg, the Navy's primary inventory control point for aviation and maritime weapon systems spare parts.
Key facts
| Attribute | Value |
|---|---|
| Agency | Department of the Navy, NAVSUP Weapon Systems Support Mechanicsburg |
| Notice type | Solicitation |
| Solicitation number | N0010427QFA11 |
| NAICS | 332722 |
| Set-aside | None (full and open competition) |
| Response deadline | November 27, 2026, 4:30 PM ET |
| Place of performance | Not specified in metadata |
Who can bid
This is a full and open competition with no set-aside program designated. Any responsible business entity registered in SAM.gov may submit an offer, including small businesses, large businesses, and foreign entities meeting U.S. defense procurement requirements.
For manufacturers, eligibility requires compliance with Defense Federal Acquisition Regulation Supplement (DFARS) specialty metals and preference for domestic sources restrictions, which commonly apply to fasteners used in military applications. Contractors must hold or obtain a valid Commercial and Government Entity (CAGE) code and maintain active SAM.gov registration through the anticipated contract performance period.
Prior experience supplying aerospace- or marine-grade fasteners, particularly under military specifications (such as MIL-DTL-25027 for self-locking nuts or equivalent), strengthens competitive positioning. See the solicitation for specific qualification requirements, quality certifications, and any applicable first article testing.
How to put together a competitive bid
Verify technical compliance. Self-locking nuts for Navy weapon systems must meet precise material, dimensional, and performance specifications. Obtain the applicable military or industry specification referenced in the solicitation. Confirm your manufacturing processes can consistently achieve required torque-tension characteristics, vibration resistance, and corrosion protection.
Address supply chain requirements. DFARS clauses likely govern raw material sourcing, particularly for specialty steels, titanium alloys, or other high-performance materials. Document your supplier certifications and traceability systems. If you are a non-manufacturer, understand the limitation on subcontracting and any requirements to flow down clauses to material suppliers.
Price strategically. Full and open competition in FSC 5310 often attracts established fastener manufacturers with mature cost structures. Analyze historical pricing for comparable National Stock Number items through DLA's eTools or FPDS data. Factor in testing costs, particularly if first article inspection is required.
Demonstrate delivery reliability. NAVSUP WSS emphasizes supply chain resilience. Highlight your production capacity, inventory practices, and track record delivering against military delivery schedules. Include any approved Vendor Shipment Modules or experience with the Navy's electronic data interchange systems.
Prepare complete proposal documentation. Beyond price, proposals typically require technical data, quality assurance plans, and past performance references. Ensure all mandatory representations and certifications in SAM.gov are current.
Next steps
Access the complete solicitation N0010427QFA11 on SAM.gov to review specifications, quantities, delivery requirements, and evaluation criteria. Note that responses are due November 27, 2026, at 4:30 PM Eastern Time—late submissions are not ordinarily accepted in simplified acquisition procedures. Confirm your SAM.gov registration is active and any required representations are current before preparing your offer.
View the official notice on SAM.gov →