The Fuse,cartridge, cataloged under National Stock Number 5920-01-690-5443, 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 Spm Corp.. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-690-5443 |
| Primary Part Number | ATMR20 |
| Item Name | Fuse,cartridge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Mersen Usa Spm Corp. |
| Status | ACTIVE |
| Continuous Current Rating in Amps | 20.0 |
| Body Style | TUBE TYPE |
| Overall Diameter | 0.4063 INCHES NOMINAL IN |
| Interruption Indicator Method | NO VISUAL INDICATION |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Maximum Voltage Rating in Volts | 600.0 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 |
| Part Number | Manufacturer |
|---|---|
| ATMR20 PRIMARY | Mersen Usa Spm Corp. (USA) |
| Reference | Meaning |
|---|---|
| 5920PL2027468 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5920-01-690-5443 is a Fuse,cartridge, manufactured by Mersen Usa Spm Corp., classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-690-5443 has 1 manufacturer part number on file: ATMR20 (Mersen Usa Spm Corp.).
Key specifications for ATMR20: Continuous Current Rating in Amps: 20.0; Body Style: TUBE TYPE; Overall Diameter: 0.4063 INCHES NOMINAL IN; Overall Length: 1.50 INCHES NOMINAL IN. 7 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.