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Obsolescence watch

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 2026-09-28.

220

High risk

4,993

Elevated

20,143

Watch

9,976

With an open solicitation now

By supply class

All classes ←
4820 Valves, Nonpowered 1286 · 13 high
5330 Packing And Gasket Materials 1036 · 12 high
5340 Hardware, Commercial 1209 · 7 high
1560 Airframe Structural Components 463 · 7 high
4730 Hose, Pipe, Tube, Lubrication, And Railing Fittings 845 · 6 high
5935 Connectors, Electrical 778 · 6 high
4710 Pipe, Tube And Rigid Tubing 271 · 5 high
6140 Batteries, Rechargeable 101 · 5 high
5306 Bolts 512 · 4 high
5365 Bushings, Rings, Shims, And Spacers 412 · 4 high
5995 Cable, Cord, And Wire Assemblies: Communication Equipment 307 · 4 high
5325 Fastening Devices 298 · 4 high
5360 Coil, Flat, Leaf, And Wire Springs 283 · 4 high
4810 Valves, Powered 279 · 4 high
5998 Electrical And Electronic Assemblies, Boards, Cards, And Associated Hardware 190 · 4 high
4930 Lubrication And Fuel Dispensing Equipment 50 · 4 high
8465 Individual Equipment 32 · 4 high
5305 Screws 893 · 3 high
1680 Miscellaneous Aircraft Accessories And Components 295 · 3 high
6130 Converters, Electrical, Nonrotating 127 · 3 high
4130 Refrigeration And Air Conditioning Components 121 · 3 high
5342 Hardware, Weapon System 115 · 3 high
5970 Electrical Insulators And Insulating Materials 111 · 3 high
5962 Microcircuits, Electronic 109 · 3 high
4310 Compressors And Vacuum Pumps 107 · 3 high
5310 Nuts And Washers 830 · 2 high
4720 Hose And Flexible Tubing 503 · 2 high
5930 Switches 461 · 2 high
3040 Miscellaneous Power Transmission Equipment 381 · 2 high
4320 Power And Hand Pumps 315 · 2 high

How the score is built

AAC V (terminal, no replacement) 40 · AAC Y 30 · AAC X 25 · single source whose SAM registration has expired 45 · every verifiable source expired 35 · one active source 15, and 10 more if its SAM renewal is due within 90 days · FLIS marks every source CAGE inactive 15 · solicited this year, last award 3+ years ago 15 (no award on record 10) · a restricted AMSC on the latest solicitation adds a quarter. High is 60 and up, Elevated 35, Watch 15.

Sources: FLIS reference and management data, SAM.gov entity registrations, DLA DIBBS solicitations and awards. Same list for every reader. Data, not advice.

6 stock numbers at watch risk

NSN	Item	Risk	Why	Sources	Last award	Open
1640-01-530-0048	Wire Rope Assembly,S	Watch 31	one active source in SAM out of 2 approved (0 expired, 1 unverified); that source's SAM registration (81205) is due for renewal by Nov 11, 2026; AMSC R on the latest solicitation: only approved sources may supply	21 active · 0 expired · 1 unverified	Sep 2025$97.49	1
1640-01-535-4151	Clevis,Rod End,Aviat	Watch 31	single approved source (registered in SAM); solicited in the last 12 months; no award in our record; AMSC R on the latest solicitation: only approved sources may supply	11 active · 0 expired · 0 unverified	none on record	1
1640-01-650-9141	Connector,Rod End,A	Watch 30	single approved source (registered in SAM); solicited in the last 12 months; last award Feb 2018	11 active · 0 expired · 0 unverified	Feb 2018$2,144.00	2 in 12 m
1640-01-482-6371	Wire Rope Assembly,S	Watch 25	single approved source (registered in SAM); that source's SAM registration (77272) is due for renewal by Nov 12, 2026	11 active · 0 expired · 0 unverified	Mar 2026$190.95	1
1640-01-321-3705	Cable Assembly,Contr	Watch 18	solicited in the last 12 months; last award Feb 2019; AMSC B on the latest solicitation: only approved sources may supply	42 active · 0 expired · 2 unverified	Feb 2019$39.50	1
1640-01-321-3002	Cable Assembly,Cont	Watch 18	solicited in the last 12 months; last award Dec 2022; AMSC B on the latest solicitation: only approved sources may supply	53 active · 0 expired · 2 unverified	Dec 2022$62.18	1 in 12 m

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.