48--HIGH STAGE PRECOOLE, IN REPAIR/MODIFICATION OF
DEPT OF DEFENSE.DEPT OF THE NAVY.NAVSUP.NAVSUP WEAPON SYSTEMS SUPPORT.NAVSUP WSS PHILADELPHIA.NAVSUP WEAPON SYSTEMS SUPPORT · Response deadline: Mon, 23 Nov 2026
What the government is buying
The Department of the Navy, through NAVSUP Weapon Systems Support Philadelphia, is seeking a contractor to repair or modify high-stage precoolers (NSN 4820). Precoolers are heat exchanger components commonly used in gas turbine engines and auxiliary power systems to cool compressed air before it enters downstream stages. This type of work falls under the broader category of valve and fitting manufacturing, though the actual scope involves industrial repair and overhaul services for military propulsion or auxiliary systems.
Key facts
| Attribute | Value |
|---|---|
| Agency | Department of the Navy, NAVSUP Weapon Systems Support Philadelphia |
| Notice type | Solicitation |
| Solicitation number | N0038327QSA04 |
| NAICS | 332919 — Other Metal Valve and Pipe Fitting Manufacturing |
| Set-aside | None (full and open competition) |
| Response deadline | November 23, 2026 at 4:30 PM Eastern Time |
| Place of performance | see the solicitation |
Who can bid
This solicitation is full and open competition with no set-aside, meaning any responsible offeror—regardless of size or socioeconomic status—may submit a bid. NAICS 332519 (for this solicitation, 332919 is listed, but the relevant size standard for manufacturing typically applies; note: the notice shows 332919 which is "Other Metal Valve and Pipe Fitting Manufacturing") generally carries a 500-employee size standard for small business purposes, though no small business preference applies here.
To compete, your firm must be registered in the System for Award Management (SAM.gov) and have any required Department of Defense certifications for handling military technical data or performing depot-level repair work. Firms with experience in aerospace heat exchanger repair, gas turbine component overhaul, or Navy aviation support contracts will be best positioned. If you hold an existing NAVSUP repair contract or are on the Qualified Suppliers List for Distributors (QSLD), highlight this in your proposal.
How to put together a competitive bid
Technical approach: Repair/modification of precoolers requires specialized welding, brazing, non-destructive testing, and dimensional restoration capabilities. Detail your facility certifications (NADCAP, AS9100, or equivalent), specific heat exchanger repair processes, and quality control procedures. If you have repaired similar 4820-class items before, provide past performance references with NSN or part number specificity.
Pricing strategy: Without a set-aside, expect price to carry significant weight. Develop your cost buildup from actual historical data—labor hours by skill code, material costs for replacement tubes or headers, overhead rates, and any subcontracted NDT or plating services. Navy repair contracts often evaluate on "best value," so a slightly higher technically superior offer may win against a low-price baseline. See the solicitation for the exact evaluation criteria.
Compliance: Pay strict attention to any Military Standard or Naval Air Systems Command (NAVAIR) process specifications referenced. Repair contracts frequently invoke requirements for source inspection, serialized traceability, and specific packaging for military shipment. Missing a cited specification in your proposal can render you non-compliant.
Past performance: NAVSUP Philadelphia evaluates demonstrated experience with similar item complexity and Navy customers. Prepare Contractor Performance Assessment Reports (CPARs) or customer reference letters that speak directly to on-time delivery and quality acceptance rates.
Next steps
Download the full solicitation N0038327QSA04 from SAM.gov immediately to obtain the statement of work, repair specifications, delivery requirements, and evaluation factors. Note the firm deadline of November 23, 2026 at 4:30 PM Eastern Time—NAVSUP typically does not accommodate late submissions. Review any amendments posted after the October 23, 2026 announcement date, as repair solicitations frequently clarify technical requirements or sample submission protocols. If you need the place of performance to assess logistics costs, that detail appears only in the solicitation documents.
View the official notice on SAM.gov →