Obsolescence watch: 4310 Compressors And Vacuum Pumps
Stock numbers the government still buys whose supply base is thinning. Each one carries the reasons in plain words: the government's own terminal codes, approved sources whose SAM registration has expired, a single source, a registration about to lapse, years of solicitations without an award. A source we cannot verify in SAM is shown as unverified, never counted as gone. Rebuilt nightly; this list is from 2026-09-29.
single approved source, and its SAM registration has expired; solicited in the last 12 months; last award Nov 2013; AMSC D on the latest solicitation: only approved sources may supply
single approved source, and its SAM registration has expired; solicited in the last 12 months; no award in our record; AMSC D on the latest solicitation: only approved sources may supply
every approved source we can verify in SAM has expired (1 of 2; 1 unverified); solicited in the last 12 months; last award Jun 2023; AMSC D on the latest solicitation: only approved sources may supply
20 active · 1 expired · 1 unverified
Jun 2023$275.80
1
Have one of these on the shelf, or can you make it? List it free and the solicitation lands on your dashboard the morning it posts. Buyers: every NSN page shows the same read with the full source list.