The Fuse,cartridge, cataloged under National Stock Number 5920-01-392-3603, 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 Mersen Usa Ep Corp. Dba Ferraz Shawmut. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-392-3603 |
| Primary Part Number | A50P900-4 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Mersen Usa Ep Corp. Dba Ferraz Shawmut |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 900.000 |
| Body Style | HOLE TYPE |
| Overall Diameter | 3.000 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 4.969 INCHES NOMINAL IN |
| Terminal Thickness | 0.438 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.625 INCHES NOMINAL IN |
| Interruption Indicator Method | OPAQUE BODY |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Surface Treatment | COPPER ALLOY TERMINAL |
| Maximum Voltage Rating in Volts | 500.0 AC |
| Circuit Over-Current Interruption Type | NORMAL INSTANTANEOUS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5920-01-392-3603 is a Fuse,cartridge, manufactured by Mersen Usa Ep Corp. Dba Ferraz Shawmut, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-392-3603 has 2 manufacturer part numbers on file: A50P900-4 (Mersen Usa Ep Corp. Dba Ferraz Shawmut), FWH-900A (Cooper Bussmann, Llc Dba Cooper Industries).
Key specifications for A50P900-4: Continuous Current Rating in Amps: 900.000; Body Style: HOLE TYPE; Overall Diameter: 3.000 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 4.969 INCHES NOMINAL IN. 11 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.