Part number 121639 appears under 5 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.

4320-01-174-4096 — PUMP,ROTARY · FSC 4320
5310-01-096-6182 — WASHER,FLAT · FSC 5310
6505-01-605-3198 — BUPIVACAINE HYDROCHLORIDE AND EP · FSC 6505
4820-01-229-4257 — DISK,VALVE · FSC 4820
5998-01-423-9786 — CIRCUIT CARD ASSEMBLY · FSC 5998