Part number 2251-5 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.

5331-00-833-7491 — O-RING · FSC 5331
1650-01-056-6916 — FILTER,VENT,RESERVOIR · FSC 1650
3120-01-314-5575 — BUSHING,SLEEVE · FSC 3120
5330-01-039-0122 — SEAL,PLAIN ENCASED · FSC 5330
2530-01-340-1453 — PISTON,VALVE · FSC 2530
5330-01-067-0276 — SEAL · FSC 5330
4130-01-335-8316 — CRANKSHAFT,COMPRESSOR · FSC 4130
4730-01-628-9736 — RESTRICTOR,FLUID FLOW · FSC 4730
5120-01-590-8931 — JAW,VISE,HAND · FSC 5120