Part number 30-4 appears under 62 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.

3110-00-554-5396 — BEARING,BALL,ANNULAR · FSC 3110
3110-00-156-3542 — BEARING,BALL,ANNULAR · FSC 3110
4420-00-469-1085 — FILLER · FSC 4420
5315-00-616-5515 — KEY,WOODRUFF · FSC 5315
3455-00-243-2166 — CUTTER,MILLING,WOODRUFF KEYSEAT · FSC 3455
6140-00-434-5873 — BATTERY,STORAGE · FSC 6140
2940-00-460-6955 — FILTER ELEMENT,INTAKE AIR CLEANE · FSC 2940
5120-00-596-8502 — SCREWDRIVER,FLAT TIP · FSC 5120
3030-00-264-3041 — BELT,V · FSC 3030
5975-00-152-1071 — LOCKNUT,ELECTRICAL CONDUIT · FSC 5975
6240-00-155-7793 — LAMP,INCANDESCENT · FSC 6240
5330-00-154-1442 — SEAL,PLAIN ENCASED · FSC 5330
5999-00-986-0722 — CONTACT,ELECTRICAL · FSC 5999
5120-01-398-8054 — SCREWDRIVER,CROSS TIP · FSC 5120
3110-00-100-0052 — BEARING,BALL,ANNULAR · FSC 3110
5355-01-219-1483 — KNOB · FSC 5355
5975-00-958-7456 — NIPPLE,ELECTRICAL CONDUIT · FSC 5975
6515-01-112-8633 — SUPPORT,CERVICAL · FSC 6515
6510-00-926-9082 — SPONGE,SURGICAL · FSC 6510
6625-00-063-0687 — VOLTMETER · FSC 6625
6730-01-179-4589 — VIEWER,STILL PICTURE · FSC 6730
5120-01-105-3793 — VISE,MULTIPOSITION · FSC 5120
7920-01-019-4877 — CLOTH,CLEANING · FSC 7920
5330-01-070-3978 — GASKET · FSC 5330
6625-00-580-5904 — AMMETER · FSC 6625
5975-00-296-9432 — BOX CONNECTOR,ELECTRICAL · FSC 5975
5930-00-140-9197 — SWITCH,TOGGLE · FSC 5930
2910-00-028-3931 — PLATE,PUMP · FSC 2910
5940-01-723-1764 — TERMINAL BOARD · FSC 5940
5845-00-568-0490 — FACING,CLUTCH · FSC 5845
5330-00-417-1487 — GASKET · FSC 5330
6625-00-199-1778 — VOLTMETER · FSC 6625
6250-00-058-4497 — LAMPHOLDER · FSC 6250
3040-01-362-8994 — SHAFT,STRAIGHT · FSC 3040
5999-01-298-2104 — HEAT SINK,ELECTRICAL-ELECTRONIC · FSC 5999
5315-01-244-8682 — KEY,WOODRUFF · FSC 5315
5985-00-972-3857 — DRIVE,ANTENNA · FSC 5985
5340-00-950-4139 — STRAP,RETAINING · FSC 5340
3020-01-551-5934 — PULLEY,GROOVE · FSC 3020
5910-00-553-5891 — CAPACITOR,VARIABLE,MICA DIELECTR · FSC 5910
3695-00-496-5995 — CLAMP ASSEMBLY · FSC 3695
6250-00-299-7261 — LAMPHOLDER · FSC 6250
3810-00-240-7505 — CRANE-SHOVEL,BASIC UNIT,TRUCK MO · FSC 3810
6625-00-004-1255 — VOLTMETER · FSC 6625
5315-01-364-7422 — KEY,MACHINE · FSC 5315
5999-01-327-2916 — HEAT SINK-INSULATOR · FSC 5999
5940-01-291-0977 — TERMINAL BOARD · FSC 5940
1620-01-201-0464 — PLUG · FSC 1620
8040-00-968-4838 — ADHESIVE · FSC 8040
5305-01-652-9803 — SETSCREW · FSC 5305

Showing the 50 best-attested of 62 stock numbers. Search for 30-4 to see the rest.