Part number 21020 appears under 16 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.

4730-00-278-2523 — CLAMP,HOSE · FSC 4730
5935-00-847-9683 — ADAPTER,CONNECTOR · FSC 5935
5120-00-061-8544 — HAMMER,HAND · FSC 5120
4820-01-142-5193 — VALVE,OPERATOR · FSC 4820
5905-00-702-0523 — RESISTOR,VARIABLE,NONWIRE WOUND, · FSC 5905
4820-00-603-8696 — VALVE,CHECK · FSC 4820
5998-01-295-6003 — CIRCUIT CARD ASSEMBLY · FSC 5998
2530-01-446-2651 — PARTS KIT,AXLE,VEHICULAR,NONDRIV · FSC 2530
4720-01-329-8602 — HOSE ASSEMBLY,NONMETALLIC · FSC 4720
9340-01-304-9889 — WINDOW,OBSERVATION · FSC 9340
5365-01-240-0608 — RING,EXTERNALLY THREADED · FSC 5365
5331-01-645-3780 — O-RING · FSC 5331
4810-00-688-9939 — VALVE,SOLENOID · FSC 4810
5985-00-633-0231 — ATTENUATOR,FIXED · FSC 5985
5970-01-298-3310 — APEX INSULATOR ASSEMBLY · FSC 5970
6240-01-411-4425 — LAMP,FLUORESCENT · FSC 6240