Part number RB-1 appears under 9 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.

5945-00-907-4861 — RELAY,ELECTROMAGNETIC · FSC 5945
4210-00-288-6849 — BRACKET,FIRE EXTINGUISHER · FSC 4210
5895-01-338-7259 — CASE,ELECTRONIC COMMUNICATIONS E · FSC 5895
3230-01-157-4422 — BIT,ROUTER · FSC 3230
3417-01-286-2691 — MILLING MACHINE,VERTICAL · FSC 3417
4935-01-128-9493 — BUTTON,INDEX · FSC 4935
4820-01-730-2819 — VALVE,CHECK · FSC 4820
5365-01-641-3987 — BUSHING,SLEEVE · FSC 5365
7510-01-555-7993 — CARTRIDGE,TONER · FSC 7510