The Fuseholder,block, cataloged under National Stock Number 5920-00-655-4251, 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 Cooper Bussmann, Llc Dba Cooper Industries. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5920-00-655-4251 |
| Primary Part Number | 3842-4 |
| Item Name | Fuseholder,block |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Cooper Bussmann, Llc Dba Cooper Industries |
| Status | ACTIVE |
| Accommodated Fuse Length | 1.250 INCHES NOMINAL1.250 INCHES NOMINAL IN |
| Voltage in Volts | 250.0250.0 |
| Accommodated Ferrule Diameter | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Fuse Terminal Type Accommodated | FERRULEFERRULE |
| Surface Treatment | SILVER CONTACTSILVER CONTACT |
| Current Carrying Rating in Amps | 20.020.0 |
| Material | PLASTIC BODYPLASTIC BODY |
| Material | COPPER ALLOY CONTACTCOPPER ALLOY CONTACT |
| Terminal Type and Quantity | 8 TAB, SOLDER LUG8 TAB, SOLDER LUG |
| Fuse Accommodation Quantity | 44 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5920-00-655-4251 is a Fuseholder,block, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-00-655-4251 has 2 manufacturer part numbers on file: 3842-4 (Cooper Bussmann, Llc Dba Cooper Industries), 7418803P4 (Lockheed Martin Corporation Div Rms).
2 possible matches (shared part number, not a government interchangeability claim): 5330-00-694-8801, 4710-01-475-9792. Verify interchangeability with system specifications before substitution.
Key specifications for 3842-4: Accommodated Fuse Length: 1.250 INCHES NOMINAL1.250 INCHES NOMINAL IN; Voltage in Volts: 250.0250.0; Accommodated Ferrule Diameter: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN; Fuse Terminal Type Accommodated: FERRULEFERRULE. 10 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.