The Fuse,cartridge, cataloged under National Stock Number 5920-01-604-5816, is classified within Federal Supply Class 5920 (Fuses, Arrestors, Absorbers, and Protectors) of the Electrical and Electronic Equipment Components group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-604-5816 |
| Primary Part Number | 1CK74 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1CK74 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| GMT-7-1/2A | Graybar Electric Company, Inc. Dba Graybar Electric (USA) |
| Reference | Meaning |
|---|---|
| GMT-7-1/2 | 5/9 Secondary reference Bussmann |
NSN 5920-01-604-5816 is a Fuse,cartridge, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-604-5816 has 2 manufacturer part numbers on file: 1CK74 (W.w. Grainger, Inc. Div Government Sales Division), GMT-7-1/2A (Graybar Electric Company, Inc. Dba Graybar Electric).
1 possible match (shared part number, not a government interchangeability claim): 5920-01-660-9943. Verify interchangeability with system specifications before substitution.
Key specifications for 1CK74: Part Name Assigned by Controlling Agency: FUSE, 7.5 AMP; End Item Identification: FAA TELECOM. INFRASTRUCTURE MICROWAVE (RCL) (FTI-MW). 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.