Part number 21399 appears under 9 stock numbers

Manufacturers reuse part numbers across items. Each stock number below is its own federal item record — pick the one your drawing or solicitation cites.

4730-00-142-2010 — CLAMP,HOSE · FSC 4730
2990-00-846-2942 — MUFFLER,EXHAUST · FSC 2990
5998-00-003-6115 — EXTENDER CARD,ELECTRONIC TEST · FSC 5998
5950-01-202-3045 — TRANSFORMER,POWER · FSC 5950
3030-01-053-1340 — BELT,FLAT · FSC 3030
6140-01-240-9700 — THERMOSTAT,BATTERY ASSEMBLY · FSC 6140
5306-00-151-1723 — BOLT,MACHINE · FSC 5306
5110-00-083-0042 — RASP,HAND · FSC 5110
4820-01-583-7788 — MILSPEC PLUG · FSC 4820