The Circuit Breaker, cataloged under National Stock Number 5925-00-660-3699, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5925-00-660-3699 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Status | ACTIVE |
| Reset Method | AUTOMATIC |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 600.0 AC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 4 THREADED STUD(S) |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 400.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | INSTANTANEOUS AND TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 25000.0 AC ALL LOCATIONS |
| Trip Delay Time in Seconds Per Rated Continuous Current | 0.050 NOMINAL AT 200 PCT ALL LOCATIONS |
| Inclosure Protection Type for Which Designed | FUNGUS RESISTANT |
| Terminal Type and Quantity | 6 EYELET |
| Trip Release Method | MAGNETIC-HYDRAULIC ALL LOCATIONS |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED IN POLES CONTINUOUS LOAD RATING OVERLOAD PROTECTION ENVIRONMENTAL PROTECTION OVER-ALL DIMENSIONS AND MOUNTING DATA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| DB25 | 5/2 Secondary reference U.S. Government activity |
| DB25 | 3/9 Design control — primary reference Westinghouse Electric Corp Power Generation-Generator Div |
| DB25 | 5/1 Secondary reference Westinghouse Electric Corp |
NSN 5925-00-660-3699 is a Circuit Breaker, classified under FSC 5925, Circuit Breakers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5935-01-293-0833, 5935-01-377-0155. Verify interchangeability with system specifications before substitution.
Key specifications for 5925-00-660-3699: Reset Method: AUTOMATIC; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 600.0 AC ALL LOCATIONS; Mounting Facility Type and Quantity: 4 THREADED STUD(S). 15 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.