The Circuit Breaker, cataloged under National Stock Number 5925-01-121-9398, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-121-9398 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Status | ACTIVE |
| Reset Method | AUTOMATIC |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 120.0 AC AND 28.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Frequency in Hertz | 60.0 OR 1000.0 SINGLE LOCATION |
| Body Style | RECTANGULAR DIMENSIONAL ENVELOPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 138.0 SINGLE LOCATION |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Unthreaded Mounting Hole Diameter | 0.203 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Maximum Continuous Load Current Rating Per Pole | 25.0 AMPERES AC AND 25.0 AMPERES DC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 4000.0 AC AND 4000.0 DC SINGLE LOCATION |
| Trip Delay Time in Seconds Per Rated Continuous Current | 10.000 MINIMUM AT 200 PCT AND 70.000 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Inclosure Protection Type for Which Designed | VIBRATION RESISTANT AND SHOCK RESISTANT AND EXPLOSION PROOF AND SAND RESISTANT AND CORROSION RESISTANT |
| Material | PLASTIC CASE |
| Trip Release Ambient Temp Rating | 77.0 FAHRENHEIT NOMINAL SINGLE LOCATION DEGF |
| Terminal Type and Quantity | 3 SCREW |
| Trip Release Method | THERMAL SINGLE LOCATION |
| 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 |
|---|---|
| D7235-2-25 | 5/9 Secondary reference U.S. Government activity |
| 7235-2-25 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5925-01-121-9398 is a Circuit Breaker, classified under FSC 5925, Circuit Breakers. Status: active.
Key specifications for 5925-01-121-9398: Reset Method: AUTOMATIC; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 120.0 AC AND 28.0 DC SINGLE LOCATION; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S). 19 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.