The Fuse,cartridge, cataloged under National Stock Number 5920-01-156-0720, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5920-01-156-0720 |
| Primary Part Number | OTS25 |
| 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 | 25.000 |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | REJECTION GROOVE TYPE |
| Overall Diameter | 0.406 INCHES NOMINAL IN |
| Interruption Indicator Method | VISIBLE ELEMENT |
| Features Provided | NONRENEWABLE FUSIBLE ELEMENT |
| Surface Treatment | NICKEL TERMINAL |
| Maximum Voltage Rating in Volts | 600.0 AC |
| Material | COPPER ALLOY TERMINAL |
| 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 |
|---|---|
| OTS25 PRIMARY | Mersen Usa Ep Corp. Dba Ferraz Shawmut (USA) |
| Reference | Meaning |
|---|---|
| 0TS25 | 5/9 Secondary reference Mersen Canada Toronto Inc |
NSN 5920-01-156-0720 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 5920-01-156-0720 has 1 manufacturer part number on file: OTS25 (Mersen Usa Ep Corp. Dba Ferraz Shawmut).
Key specifications for OTS25: Continuous Current Rating in Amps: 25.000; Fragility Factor: MODERATELY RUGGED; Body Style: REJECTION GROOVE TYPE; Overall Diameter: 0.406 INCHES NOMINAL IN. 10 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.