The Fuse,cartridge, cataloged under National Stock Number 5920-01-680-9754, 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 Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp. 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 | 5920-01-680-9754 |
| Primary Part Number | A4BT300 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 300.0 |
| Body Style | HOLE TYPE |
| Overall Diameter | 51.0 MILLIMETERS NOMINAL MM |
| Terminal Length | 61.0 MILLIMETERS NOMINAL MM |
| Terminal Thickness | 8.0 MILLIMETERS NOMINAL MM |
| Body Length | 3.8125 INCHES NOMINAL IN |
| Maximum Voltage Rating in Volts | 500.0 DC AND 600.0 AC |
| Circuit Over-Current Interruption Type | TIME DELAY |
| 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 |
|---|---|
| A4BT300 PRIMARY | Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp (USA) |
NSN 5920-01-680-9754 is a Fuse,cartridge, manufactured by Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-680-9754 has 1 manufacturer part number on file: A4BT300 (Mersen Usa Ptt Corp Dba Mersen Usa - Salem Branch Div Mersen Usa Bn Corp).
Key specifications for A4BT300: Continuous Current Rating in Amps: 300.0; Body Style: HOLE TYPE; Overall Diameter: 51.0 MILLIMETERS NOMINAL MM; Terminal Length: 61.0 MILLIMETERS NOMINAL MM. 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.