The Fuse,cartridge, cataloged under National Stock Number 5920-01-433-4473, 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 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-433-4473 |
| Primary Part Number | 251 005 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Littelfuse, Inc. |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 5.000 |
| Body Style | TANGENT LEADS |
| Overall Diameter | 0.095 INCHES NOMINAL IN |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Maximum Voltage Rating in Volts | 125.0 AC |
| 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 |
|---|---|
| 251 005 PRIMARY | Littelfuse, Inc. (USA) |
| Reference | Meaning |
|---|---|
| LF5A | 5/9 Secondary reference Littelfuse, Inc. |
| R251 005 | 5/9 Secondary reference Littelfuse, Inc. |
NSN 5920-01-433-4473 is a Fuse,cartridge, manufactured by Littelfuse, Inc., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-433-4473 has 1 manufacturer part number on file: 251 005 (Littelfuse, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 6550-01-506-0315, 5945-01-686-4774. Verify interchangeability with system specifications before substitution.
Key specifications for 251 005: Continuous Current Rating in Amps: 5.000; Body Style: TANGENT LEADS; Overall Diameter: 0.095 INCHES NOMINAL IN; Terminal Length: 1.500 INCHES NOMINAL IN. 5 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.