The U.S. Navy's supply arm wants to know who can print its spare parts, and it has a list ready. NAVSUP Weapon Systems Support (NAVSUP WSS) has posted a Special Notice, Request for Information N0010427RZ058, "Additive Manufacturing" (SAM.gov notice, via mirror), asking businesses whether they can design, produce and deliver end items or piece parts through additive manufacturing. Attached is a list of candidate parts identified by National Item Identification Number (NIIN), and, according to 3D Printing Industry, that list runs to 129 parts across valve, fitting and fan product lines.
The more consequential line sits further down in the notice: NAVSUP anticipates that Level I and SUBSAFE items may become eligible for additive manufacturing in the future. Those are the designations attached to the Navy's most tightly controlled components, and the suggestion that printed parts could eventually reach that tier is the clearest signal in the document of where the program is heading.
What the Notice Actually Is
It is worth being precise about what this is not. N0010427RZ058 is market research. No contract is being awarded, the government says it will not reimburse anyone for the cost of responding, and nothing in it commits the Navy to buying a single printed part. It is the stage where the buyer asks who exists, what they can do and how a future procurement ought to be built.
According to 3D Printing Industry, the notice was posted on October 14, 2026. The candidate parts fall into four Federal Supply Classes: 4820, 4810, 4730 and 4140, groupings that cover the valve, fitting and fan lines named in the notice. The publication also notes that the list may change, so any shop drawing conclusions from specific NIINs should treat the attachment as a snapshot rather than a final scope.
The attachments say a fair amount on their own. Alongside the candidate NIIN list, NAVSUP includes a Section H special requirements document and a Contract Data Requirements List (CDRL), both labeled "NON-LEVEL 1." That labeling suggests the current tranche is aimed at parts outside the highest criticality band, which squares with the separate statement that Level I/SUBSAFE items might become eligible later rather than now.
What NAVSUP Wants to Hear
The questionnaire reads like a checklist for a qualified production supplier rather than a call for prototyping shops. Respondents are asked to describe:
- AM capability, or, if they lack it in-house, their plan for using subcontractors.
- Certifications, with ISO 9001, AS9100 and Level 1/NAVSEA named explicitly.
- Facilities, including which AM modalities they run, plus post-processing, heat treatment and non-destructive testing (NDT) capability.
- Past performance on comparable work.
- Identifiers: CAGE code, Unique Entity ID and business size.
Two requests stand out because they reach beyond capability into contract design. NAVSUP is asking for feedback on performance-based incentives under Firm-Fixed-Price (FFP) contracts, and on the evaluation criteria it should use to choose among suppliers. Under a fixed-price arrangement the vendor carries the cost risk; asking industry how incentives should work in that setting implies the Navy is still working out how to reward printed-part quality and delivery without taking on that risk itself. Asking vendors to help shape the evaluation criteria points the same way: the acquisition model for AM spares is evidently not settled yet.
Then there is the line that will matter most to anyone thinking about bidding: the government says it is not providing drawings, technical data packages or CAD files. Respondents are being asked whether they can deliver parts against a NIIN without the government handing over a model. Whatever reverse engineering, design or qualification work that implies falls on the supplier, which helps explain why the questionnaire asks so directly about design capability alongside production.
The Deadline Problem
The two sources disagree on when responses are due. The SAM.gov listing, as shown on the GovDash mirror, gives 4:00 PM EST on October 22, 2026. 3D Printing Industry reports a due date of 4:00 PM ET on November 2, 2026. We could not reconcile the two from the material available. A notice can be amended after it posts, and mirrors can lag, so anyone planning to respond should check the live SAM.gov record and any amendments directly rather than relying on either date. Responses go in as PDFs by email, and NAVSUP encourages vendors to register in its Interested Vendor Database regardless.
Where This Fits
The Navy is not the only part of the defense supply system moving in this direction. 3D Printing Industry places the RFI alongside the Defense Logistics Agency's JAMA IDIQ pilot parts program, under which Applied Rapid Technologies received a prime designation in March. Taken together, the two efforts suggest that sustainment organizations are moving past one-off demonstrations of printed parts and toward standing contract vehicles with defined part lists, documentation requirements and supplier pools.
The categories here are notably unglamorous. Valves, fittings and fans are the sort of hardware that keeps a ship running and that, for older platforms, can be difficult to source when original suppliers have moved on. That makes them a sensible test bed: the geometries are well understood, the performance requirements are concrete, and the gap between "we need this part" and "nobody makes it anymore" is exactly the problem additive manufacturing is supposed to close.
What It Means for Makers
For most of FilamentFeed's readers, this is not a bid opportunity. The certification list alone, AS9100 and Level 1/NAVSEA among it, plus the expectation of in-house or contracted heat treatment and NDT, puts these parts firmly in the territory of qualified industrial shops. A well-tuned desktop machine does not get you onto a NAVSUP vendor list.
It is still a useful document to read. The questionnaire is, in effect, a public statement of what a military buyer believes separates a printed part it can trust from one it cannot: documented process control, post-processing, inspection and traceability, not just the printer itself. The absence of government CAD also highlights a skill that makers practice routinely, measuring and modeling a part from the physical object, which here becomes a contractual responsibility with real consequences.
And the SUBSAFE line is worth watching. If printed components eventually clear the Navy's most demanding quality bar, it will be because suppliers built the qualification evidence the notice is now asking about. Small shops with AM capability and the right certifications, or the ambition to obtain them, should note that the questionnaire explicitly allows for subcontracting plans, which leaves room for partnerships below the prime level.
