The Fuse,cartridge, cataloged under National Stock Number 5920-01-497-6778, 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 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-497-6778 |
| Primary Part Number | 277001 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Littelfuse, Inc. |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 1.000 |
| Fragility Factor | MODERATELY RUGGED |
| Terminal Diameter | 0.025 INCHES NOMINAL IN |
| Body Style | PIGTAIL TYPE |
| Overall Diameter | 0.093 INCHES NOMINAL IN |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Interruption Indicator Method | OPAQUE BODY |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Surface Treatment | SOLDER TERMINAL |
| Maximum Voltage Rating in Volts | 125.0 AC AND 125.0 DC |
| Material | CERAMIC CASE |
| Material | COPPER 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 |
|---|---|
| 277001 PRIMARY | Littelfuse, Inc. (USA) |
NSN 5920-01-497-6778 is a Fuse,cartridge, manufactured by Littelfuse, Inc., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-497-6778 has 1 manufacturer part number on file: 277001 (Littelfuse, Inc.).
Key specifications for 277001: Continuous Current Rating in Amps: 1.000; Fragility Factor: MODERATELY RUGGED; Terminal Diameter: 0.025 INCHES NOMINAL IN; Body Style: PIGTAIL TYPE. 13 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.