The Fuse Link,thermal, cataloged under National Stock Number 5920-00-404-9278, 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 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-00-404-9278 |
| Primary Part Number | WWU |
| Item Name | Fuse Link,thermal |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Cooper Bussmann, Llc Dba Cooper Industries |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 30.000 |
| Element Melting Temp | 225.0 FAHRENHEIT DEGF |
| Temp Rating | 175.0 FAHRENHEIT DEGF |
| Body Style | TANGENT TYPE |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.906 INCHES NOMINAL IN |
| Body Height | 0.156 INCHES NOMINAL IN |
| Interruption Indicator Method | VISIBLE ELEMENT |
| Maximum Voltage Rating in Volts | 250.0 AC AND 250.0 DC |
| Mounting Slot Width | 0.185 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| 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 |
|---|---|
| WWU PRIMARY | Cooper Bussmann, Llc Dba Cooper Industries (USA) |
| Reference | Meaning |
|---|---|
| WZR | 5/9 Secondary reference Cooper Bussmann, Llc Dba Cooper Industries |
| 350A971G18 | 5/9 Secondary reference Snydergeneral Corp Commercial Products Group |
NSN 5920-00-404-9278 is a Fuse Link,thermal, manufactured by Cooper Bussmann, Llc Dba Cooper Industries, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-00-404-9278 has 1 manufacturer part number on file: WWU (Cooper Bussmann, Llc Dba Cooper Industries).
Key specifications for WWU: Continuous Current Rating in Amps: 30.000; Element Melting Temp: 225.0 FAHRENHEIT DEGF; Temp Rating: 175.0 FAHRENHEIT DEGF; Body Style: TANGENT TYPE. 9 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.