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UNION NUT

DEPT OF DEFENSE.DEPT OF THE NAVY.NAVSUP.NAVSUP WEAPON SYSTEMS SUPPORT.NAVSUP WSS MECHANICSBURG.NAVSUP WEAPON SYSTEMS SUPPORT MECH · Response deadline: Fri, 30 Oct 2026

What the government is buying

The Navy's Naval Supply Systems Command (NAVSUP) Weapons Systems Support activity in Mechanicsburg, Pennsylvania is soliciting bids for UNION NUT hardware—metal coupling components used in piping, tubing, or hose assemblies. This falls under Federal Supply Classification code 4730, the category for pipe, tubing, hose, and pipe fittings and assemblies. These parts typically serve military platforms requiring reliable fluid connection points under pressure, such as shipboard systems, aircraft, or ground support equipment.

The NAICS code 332919 designates Other Metal Valve and Pipe Fitting Manufacturing, a category covering manufacturers of brass, steel, stainless steel, or other metal fittings including unions, couplings, elbows, tees, and similar components. Businesses in this space may produce components to military specifications (MIL-SPEC) or commercial standards like SAE/AS standards for aerospace and defense applications.

Key facts

Who can bid

This is an unrestricted, full and open competition—no set-aside program is indicated, meaning businesses of any size may compete. Large manufacturers, small businesses, and non-traditional defense contractors are all eligible to submit offers.

Small businesses should still evaluate whether they qualify as such under SBA size standards for NAICS 332919. If your firm meets the applicable employee or revenue threshold, you gain access to federal small business contracting preferences on future set-aside opportunities, even if this specific procurement is unrestricted.

To bid, you must be registered in the System for Award Management (SAM.gov) with an active registration, valid CAGE code, and current representations and certifications.

How to put together a competitive bid

Understand the technical requirements precisely. Union nuts for defense applications typically require exacting specifications—material grade, thread dimensions, surface finish, and torque ratings. See the solicitation for the governing specification (potentially a military standard or drawing) and confirm your existing product lines match or that you can produce to tolerance.

Verify your supply chain and material certification. NAVSUP WSS typically requires full material traceability and certificate of conformance for critical hardware. If you source raw material or subcontract finishing processes (plating, heat treatment, thread rolling), ensure those vendors are on your approved supplier list with documented quality systems.

Price strategically for the spares market. NAVSUP WSS manages weapons system support and spare parts logistics. Pricing should account for potential long-term intermittent demand rather than high-volume production runs. Evaluate whether economic order quantity or multi-year pricing advantages apply.

Address packaging, marking, and shipment requirements. Defense supply chains require strict Defense Logistics Agency (DLA) marking standards, RFID or barcoding, and possibly preservation for long-term storage. See the solicitation for packaging details.

Demonstrate quality credentials. AS9100 (aerospace) or ISO 9001 registration strengthens your proposal. Prior NAVSUP or DLA supply experience, especially with FSC 4730 items, should be highlighted.

Next steps

1. Read the full solicitation on SAM.gov using solicitation number N0010426QFC62. The posted notice contains the official specification, delivery requirements, evaluation criteria, and any amendments.
2. Note the deadline: October 30, 2026 at 4:30 PM EDT. SAM.gov submissions typically require extra lead time for technical upload—do not wait until the final day.
3. Submit questions early if the solicitation includes a period for clarifications or pre-bid inquiries.

See the solicitation for complete requirements, terms, and conditions.

View the official notice on SAM.gov →