The Fuseholder,block, cataloged under National Stock Number 5920-01-036-5545, 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 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5920-01-036-5545 |
| Primary Part Number | 1976-1 |
| 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 | 2.000 INCHES NOMINAL IN |
| Mounting Hole Height | 3.438 INCHES NOMINAL IN |
| Mounting Hole Quantity | 2 |
| Body Style | CLIP CONNECTED TYPE |
| Internal Circuit Configuration and Pole Quantity | 1 POLE, MAINLINE, FUSED |
| Mounting Hole Style | PANEL MOUNTING W/2 HOLES |
| Coating Method | DIPPED CONTACT |
| Center to Center Distance Between Outside Mounting Holes Along Length | 4.938 INCHES NOMINAL IN |
| Voltage in Volts | 250.0 |
| Mounting Hole Diameter | 0.164 INCHES NOMINAL IN |
| Mounting Hole Width | 1.500 INCHES NOMINAL IN |
| Specification/standard Data | 81349-MIL-F-21346/4 GOVERNMENT SPECIFICATION |
| Accommodated Ferrule Diameter | 0.562 INCHES NOMINAL IN |
| Fuse Terminal Type Accommodated | FERRULE |
| Surface Treatment | SOLDER CONTACT |
| Surface Treatment | TIN TERMINAL |
| Current Carrying Rating in Amps | 30.0 |
| Test Data Document | 81349-MIL-F-21346 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Base Thickness | 0.531 INCHES NOMINAL IN |
| Material | PLASTIC BODY |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG |
| Fuse Accommodation Quantity | 1 |
| 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 |
|---|---|
| 1976-1 PRIMARY | Cooper Bussmann, Llc Dba Cooper Industries (USA) |
| Reference | Meaning |
|---|---|
| FH27AM | 5/9 Secondary reference U.S. Government activity |
| MILF21346-4 | 5/9 Secondary reference U.S. Government activity |
NSN 5920-01-036-5545 is a Fuseholder,block, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-036-5545 has 1 manufacturer part number on file: 1976-1 (Cooper Bussmann, Llc Dba Cooper Industries).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-178-9659. Verify interchangeability with system specifications before substitution.
Key specifications for 1976-1: Accommodated Fuse Length: 2.000 INCHES NOMINAL IN; Mounting Hole Height: 3.438 INCHES NOMINAL IN; Mounting Hole Quantity: 2; Overall Height: 3.438 INCHES NOMINAL IN. 22 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.