Part number 18-61-6 appears under 4 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.

5310-00-063-8987 — NUT,PLAIN,HEXAGON · FSC 5310
5330-01-143-6579 — SEAL,PLAIN · FSC 5330
4940-01-601-3976 — REPAIR KIT,ELECTRICAL SYSTEM · FSC 4940
5120-01-648-1768 — KEY,SOCKET HEAD SCREW · FSC 5120