Part number 21860 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.

2990-01-010-6106 — MUFFLER,EXHAUST · FSC 2990
5330-01-192-5779 — PACKING,PREFORMED · FSC 5330
5970-01-100-2035 — INSULATOR,WASHER · FSC 5970
4730-01-265-0447 — MANIFOLD,HYDRAULIC SYSTEM ACCESS · FSC 4730
5331-01-205-5624 — O-RING · FSC 5331