Part number 43539 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.

5120-01-398-7695 — EXTENSION,SOCKET WRENCH · FSC 5120
5970-01-278-1233 — INSULATOR,DISK · FSC 5970
5310-01-422-1752 — NUT,PLAIN,HEXAGON · FSC 5310
5365-00-671-7883 — SPACER,PISTON · FSC 5365
5950-00-627-9546 — TRANSFORMER,RADIO FREQUENCY · FSC 5950
5975-01-319-6255 — ADAPTER,ELECTRICAL CONDUIT · FSC 5975