Part number 55-72 appears under 8 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.

5325-00-803-7301 — RING,RETAINING · FSC 5325
5120-01-399-9714 — SOCKET,SOCKET WRENCH · FSC 5120
5950-01-491-1389 — TRANSFORMER,POWER · FSC 5950
5962-01-055-1868 — MICROCIRCUIT,LINEAR · FSC 5962
4820-00-202-7043 — VALVE,CHECK · FSC 4820
3120-01-332-0043 — BEARING,WASHER,THRUST · FSC 3120
9905-01-554-3237 — COVER,PLATE · FSC 9905
9925-01-450-0085 — LINER,BAPTISMAL,FIELD,IMMERSION · FSC 9925