The Fuseholder,block, cataloged under National Stock Number 5920-01-022-1978, 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 15 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 | 5920-01-022-1978 |
| Primary Part Number | 3833-12 |
| 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 NOMINAL IN |
| Mounting Hole Quantity | 12 |
| Body Style | CLIP CONNECTED TYPE |
| Internal Circuit Configuration and Pole Quantity | 12 POLE, MAINLINE, FUSED |
| Mounting Hole Style | IN-LINE ALONG THE WIDTH |
| Voltage in Volts | 600.0 |
| Mounting Hole Diameter | 0.138 INCHES NOMINAL IN |
| Accommodated Ferrule Diameter | 0.250 INCHES NOMINAL IN |
| Fuse Terminal Type Accommodated | FERRULE |
| Current Carrying Rating in Amps | 30.0 |
| Base Thickness | 0.238 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN |
| Material | COPPER ALLOY CONTACT |
| Material | PLASTIC PHENOLIC BODY |
| Terminal Type and Quantity | 24 SCREW |
| Fuse Accommodation Quantity | 12 |
| 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 |
|---|---|
| 3833-12 PRIMARY | Cooper Bussmann, Llc Dba Cooper Industries (USA) |
NSN 5920-01-022-1978 is a Fuseholder,block, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-022-1978 has 1 manufacturer part number on file: 3833-12 (Cooper Bussmann, Llc Dba Cooper Industries).
Key specifications for 3833-12: Accommodated Fuse Length: 1.250 INCHES NOMINAL IN; Mounting Hole Quantity: 12; Overall Height: 0.659 INCHES MINIMUM AND 0.679 INCHES MAXIMUM IN; Body Style: CLIP CONNECTED TYPE. 15 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.