The Fuse,cartridge, cataloged under National Stock Number 5920-01-277-8531, 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 Littelfuse, Inc.. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5920-01-277-8531 |
| Primary Part Number | 266007 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Littelfuse, Inc. |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 7.000 |
| Terminal Diameter | 0.025 INCHES NOMINAL IN |
| Body Style | TANGENT LEADS |
| Overall Diameter | 0.088 INCHES NOMINAL IN |
| Precious Material | GOLD |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Interruption Indicator Method | OPAQUE BODY |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Surface Treatment | GOLD TERMINAL |
| Precious Material and Location | TERMINAL SURFACES GOLD |
| Maximum Voltage Rating in Volts | 125.0 DC |
| Material | CERAMIC CASE |
| Material | COPPER ALLOY TERMINAL |
| Circuit Over-Current Interruption Type | NORMAL INSTANTANEOUS |
| 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 |
|---|---|
| 266007 PRIMARY | Littelfuse, Inc. (USA) |
NSN 5920-01-277-8531 is a Fuse,cartridge, manufactured by Littelfuse, Inc., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-277-8531 has 1 manufacturer part number on file: 266007 (Littelfuse, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 1650-01-407-4137. Verify interchangeability with system specifications before substitution.
Key specifications for 266007: Continuous Current Rating in Amps: 7.000; Terminal Diameter: 0.025 INCHES NOMINAL IN; Body Style: TANGENT LEADS; Overall Diameter: 0.088 INCHES NOMINAL IN. 14 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.