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Obsolescence watch: 5310 Nuts And Washers

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.

240

High risk

5,173

Elevated

20,743

Watch

7,351

With an open solicitation now

1 stock number at high risk, solicited now

NSNItemRiskWhySourcesLast awardOpen
5310-00-298-4248Washer,FlatHigh 87AAC V: the government marks it a terminal item with no replacement; one active source in SAM out of 2 approved (0 expired, 1 unverified); solicited in the last 12 months; last award Aug 1975; AMSC C on the latest solicitation: only approved sources may supply21 active · 0 expired · 1 unverifiedAug 1975$0.331

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.