The Fuse Box, cataloged under National Stock Number 5920-01-232-4777, 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 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. Government technical data includes 8 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 | 5920-01-232-4777 |
| Primary Part Number | ETN5312A |
| Item Name | Fuse Box |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. |
| Status | ACTIVE |
| Mounting Method | UNTHREADED HOLE(S) |
| Style Designator | RECTANGULAR, SURFACE MOUNTING |
| System for Which Designed | THREE WIRE SINGLE PHASE |
| Main Line Maximum AC Voltage Rating in Volts | 500.0 |
| Material | PLASTIC |
| Unpackaged Unit Weight | 8.000 POUNDS LBS |
| Fuse Type and Quantity Accommodated | 3 CARTRIDGE FERRULE |
| Standard Mounting Pattern Designator | 2 POINT-IN-LINE |
| 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 |
|---|---|
| ETN5312A PRIMARY | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
NSN 5920-01-232-4777 is a Fuse Box, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-232-4777 has 1 manufacturer part number on file: ETN5312A (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).
Key specifications for ETN5312A: Mounting Method: UNTHREADED HOLE(S); Style Designator: RECTANGULAR, SURFACE MOUNTING; System for Which Designed: THREE WIRE SINGLE PHASE; Special Features: ONLY ACCEPTS FUSES THAT IS SUFFIXED WITH AN A IN THE PART NUMBER. 8 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.