Part number P3-4 appears under 6 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.

2940-00-354-0919 — FILTER ELEMENT,FLUID · FSC 2940
5950-01-200-3880 — TRANSFORMER,POWER · FSC 5950
4310-01-129-6045 — RING,PISTON · FSC 4310
3020-01-551-6016 — PULLEY,GROOVE · FSC 3020
5999-01-056-8007 — HEATER,THERMAL RELEASE · FSC 5999
4210-00-128-1376 — STRAINER,FIREFIGHTI · FSC 4210