PISTON,VALVE
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 Naval Supply Systems Command (NAVSUP) Weapon Systems Support activity in Mechanicsburg, Pennsylvania is soliciting offers for a piston, valve—a spare part used in mechanical systems, likely for naval vessels or supporting equipment. This falls under Federal Supply Classification (FSC) 4810, which covers valves and related components for fluid-power or fluid-control applications.
NAICS code 332919 corresponds to "Other Metal Valve and Pipe Fitting Manufacturing." Companies in this classification produce industrial valves, including hydraulic and pneumatic actuators, control valves, and specialized valve assemblies for military and marine applications. Valve pistons are precision-machined components that regulate fluid flow under pressure, making them critical for shipboard propulsion, weapon systems, and auxiliary machinery.
No specific quantities, technical specifications, or intended end-use systems are included in the available metadata—see the solicitation for part numbers, drawings, and delivery requirements.
Key facts
| Attribute | Value |
|---|---|
| Agency | Department of the Navy, NAVSUP Weapon Systems Support (Mechanicsburg) |
| Notice type | Solicitation |
| Solicitation number | N0010426QFE61 |
| NAICS | 332919 |
| Set-aside | None (unrestricted; full and open competition) |
| Response deadline | October 30, 2026 at 4:30 PM EDT |
| Place of performance | Not specified in metadata |
Who can bid
This procurement is unrestricted—no small-business set-aside applies. Any responsible offeror, regardless of size, may submit a bid, including:
- Small manufacturers under NAICS 332919's size standard
- Large domestic valve and fitting manufacturers
- Nontraditional defense contractors with relevant machining capabilities
Because NAVSUP manages spare and repair parts for weapon systems, prospective bidders should expect Defense Federal Acquisition Regulation Supplement (DFARS) provisions to apply, including Buy American requirements and potential specialty metals restrictions. Contractors must be registered in the System for Award Management (SAM) and should verify their representations and certifications are current.
Companies without prior Navy or defense contracting experience should note that this solicitation may require Quality System requirements (such as ISO 9001 or AS9100), source inspection, and traceability documentation for material origins.
How to put together a competitive bid
For an unrestricted NAVSUP parts solicitation, competitive positioning depends on demonstrated manufacturing capability, past delivery performance, and price:
Technical compliance: NAVSUP FSC 4810 solicitations typically reference technical data packages with tolerances, materials specifications (stainless steel, naval bronze, or specialty alloys), and surface finish requirements. See the solicitation for the exact drawings and quality clauses. Request these documents promptly through SAM.gov if not automatically downloadable.
Quality and traceability: Defense valve components require material certifications, heat numbers, and often chemical/physical test reports. Prepare to document your supply chain back to the raw material mill. If you subcontract any machining, heat treating, or testing, ensure those vendors meet DFARS contractor purchasing system requirements.
Delivery schedule: NAVSUP WSS emphasizes fleet readiness—late deliveries carry substantial consequences. Price your proposed delivery date realistically; NAVSUP frequently evaluates on best value, not strictly lowest price.
Past performance: If this is a repeat part number, NAVSUP may have evaluated prior suppliers. Unsolicited, highlight relevant Navy or marine-valve production history in your proposal.
Packaging and marking: Military Standard (MIL-STD) preservation, packaging, and labeling requirements typically apply to prevent corrosion during storage and ensure proper identification at Navy stock points.
Next steps
- Access the full solicitation immediately on SAM.gov using solicitation number N0010426QFE61 and review all attachments, technical data, and clauses.
- Note the deadline: Responses are due October 30, 2026, by 4:30 PM Eastern Daylight Time—allow buffer time for technical difficulties or SAM.gov registration issues.
- Submit questions through the designated contracting officer before any Q&A deadline specified in the solicitation.
- Confirm your SAM registration is active through the period of performance and that your NAICS 332919 representation is current.
View the official notice on SAM.gov →