The Fuse Box, cataloged under National Stock Number 5920-00-178-1677, is classified within Federal Supply Class 5920 (Fuses, Arrestors, Absorbers, and Protectors) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-00-178-1677 |
| Item Name | Fuse Box |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Status | ACTIVE |
| Fuse Current Rating in Amps | 200.0 |
| Main Line Maximum Current Rating in Amps | 620.0 |
| Mounting Method | BRACKET WITH HOLE |
| Unthreaded Mounting Hole Diameter | 0.562 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR, SURFACE MOUNTING |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 13.438 INCHES NOMINAL IN |
| Specification/standard Data | 81349-MIL-F-24646/16 GOVERNMENT SPECIFICATION |
| System for Which Designed | TWO WIRE SINGLE PHASE |
| Main Line Maximum AC Voltage Rating in Volts | 250.0 |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 9.250 INCHES NOMINAL IN |
| Test Data Document | 81349-MIL-F-24646 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.). |
| Material | COPPER ALLOY |
| Fuse Type and Quantity Accommodated | 2 CARTRIDGE KNIFE BLADE |
| Standard Mounting Pattern Designator | 3 POINT-TRIANGULAR |
| Hazardous Locations/environmental Protection | SUBMERSIBLE-NEMA TYPE 6 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 9000S6202-74188REVASYMB0L690-1 | 5/9 Secondary reference U.S. Government activity |
| 9S4387L | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
| M24646/16-004 | 2/2 Government specification standardization U.S. Government activity |
| SYM 690-1 | 5/1 Secondary reference U.S. Government activity |
| MIL-F-24646/16 | 4/1 Identification reference U.S. Government activity |
| 9-S-4387-L | 5/9 Secondary reference U.S. Government activity |
| 9S4387LALT9 | 5/9 Secondary reference U.S. Government activity |
NSN 5920-00-178-1677 is a Fuse Box, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
Key specifications for 5920-00-178-1677: Overall Height: 15.375 INCHES NOMINAL IN; Fuse Current Rating in Amps: 200.0; Main Line Maximum Current Rating in Amps: 620.0; Mounting Method: BRACKET WITH HOLE. 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.