The Circuit Breaker, cataloged under National Stock Number 5925-01-587-6954, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cooper Bussmann. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-587-6954 |
| Primary Part Number | 187050F-03-1 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Cooper Bussmann |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Mounting Facility Type and Quantity | 3 UNTHREADED HOLE(S) |
| Unthreaded Mounting Hole Diameter | 5.5 MILLIMETERS NOMINAL MM |
| Pole Quantity | 2 |
| Switch Current Rating and Type in Amps | 50.0 AC |
| 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 |
|---|---|
| 187050F-03-1 PRIMARY | Cooper Bussmann (USA) |
| Reference | Meaning |
|---|---|
| 04-20970 | 7/2 Vendor item drawing reference Cummins Power Generation Inc. |
| 04-20970 | D/9 Drawing number reference only Department of Defense Project Manager-Mobile Electric Power |
| 04-20970-5 | 7/2 Vendor item drawing reference Department of Defense Project Manager-Mobile Electric Power |
NSN 5925-01-587-6954 is a Circuit Breaker, manufactured by Cooper Bussmann, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-587-6954 has 1 manufacturer part number on file: 187050F-03-1 (Cooper Bussmann).
2 possible matches (shared part number, not a government interchangeability claim): 5925-01-589-4788, 5925-01-589-4819. Verify interchangeability with system specifications before substitution.
Key specifications for 187050F-03-1: Reset Method: MANUAL; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S); Overall Height: 43.8 MILLIMETERS NOMINAL MM; Unthreaded Mounting Hole Diameter: 5.5 MILLIMETERS NOMINAL MM. 5 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.