The Fuseholder,extractor Post, cataloged under National Stock Number 5920-01-617-9974, 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 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5920-01-617-9974 |
| Primary Part Number | 1SC250 |
| Item Name | Fuseholder,extractor Post |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Mersen Usa Ep Corp. Dba Ferraz Shawmut |
| Status | ACTIVE |
| Voltage in Volts | 1000.0 |
| Current Carrying Rating in Amps | 400.0 |
| Fuse Accommodation Quantity | 1 |
| 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 |
|---|---|
| 1SC250 PRIMARY | Mersen Usa Ep Corp. Dba Ferraz Shawmut (USA) |
| 0024-12137 | Chromalox, Inc. Div Chromalox (USA) |
| Reference | Meaning |
|---|---|
| D-58117 | D/9 Drawing number reference only Chromalox, Inc. Div Chromalox |
NSN 5920-01-617-9974 is a Fuseholder,extractor Post, manufactured by Mersen Usa Ep Corp. Dba Ferraz Shawmut, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-617-9974 has 2 manufacturer part numbers on file: 1SC250 (Mersen Usa Ep Corp. Dba Ferraz Shawmut), 0024-12137 (Chromalox, Inc. Div Chromalox).
Key specifications for 1SC250: Voltage in Volts: 1000.0; Overall Length: 2.45 INCHES NOMINAL IN; Overall Width: 0.70 INCHES NOMINAL IN; Current Carrying Rating in Amps: 400.0. 3 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.