Part number 310-21 appears under 13 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.

3110-00-227-4916 — BEARING,ROLLER,RADIAL AND THRUST · FSC 3110
7520-01-465-1430 — PEN,BALL-POINT · FSC 7520
7510-01-187-9822 — RIBBON,INKING · FSC 7510
5965-00-280-9669 — CUSHION,EAR · FSC 5965
5133-00-194-6752 — DRILL,TWIST · FSC 5133
3120-01-330-2152 — BEARING,SLEEVE · FSC 3120
3020-00-788-7960 — GEAR,BEVEL · FSC 3020
5895-01-089-4969 — INDICATOR ASSEMBLY · FSC 5895
5945-01-321-8020 — RELAY,REED · FSC 5945
5130-01-397-9753 — DRILL,ELECTRIC,PORTABLE · FSC 5130
6515-01-233-8873 — DRILL BIT,BONE · FSC 6515
5905-01-085-6334 — RESISTOR,VARIABLE,WIRE WOUND,NON · FSC 5905
6130-00-312-7928 — RECTIFIER,METALLIC · FSC 6130