The Circuit Breaker, cataloged under National Stock Number 5925-01-678-9263, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-678-9263 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Status | ACTIVE |
| Bushing Length | 0.332 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 240.0 AC AND 50.0 DC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING WITH PANEL SEAL |
| Actuator Position Designation | BETWEEN POLE ONE AND TWO |
| Frequency in Hertz | 400.0 ALL LOCATIONS |
| Unpackaged Unit Weight | 100.0 GRAMS NOMINAL G |
| Center to Center Distance Between Terminals Parallel to Width | 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 115.0 ALL LOCATIONS |
| Arc Quenching Method | MAGNETIC BLOWOUT |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 1.281 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 2 |
| Mounting Surface to Terminal End Distance | 1.828 INCHES MAXIMUM IN |
| Thread Pitch Diameters | +0.3503 TO 0.3537 INCHES IN |
| Maximum Continuous Load Current Rating Per Pole | 6.0 AMPERES AC AND 6.0 AMPERES DC ALL LOCATIONS |
| Features Provided | ROHS DIRECTIVE COMPLIANCE |
| Trip Release Characteristic | TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 300.0 AC AND 500.0 DC ALL LOCATIONS |
| Nominal Thread Size | 0.375 INCHES IN |
| Specification/standard Data | 81349-MIL-PRF-39019/3 GOVERNMENT SPECIFICATION |
| Body Length | 1.562 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 0.055 MINIMUM AT 200 PCT AND 0.950 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Inclosure Protection Type for Which Designed | FUNGUS RESISTANT AND HERMETICALLY SEALED |
| 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 |
|---|---|
| MIL-PRF-39019 | 5/9 Secondary reference U.S. Government activity |
| AP12-M39019/03-233S | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MIL-PRF-39019/3 | 4/1 Identification reference U.S. Government activity |
| M39019/03-233S | 2/2 Government specification standardization U.S. Government activity |
NSN 5925-01-678-9263 is a Circuit Breaker, classified under FSC 5925, Circuit Breakers. Status: active.
Key specifications for 5925-01-678-9263: Bushing Length: 0.332 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN; Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 240.0 AC AND 50.0 DC ALL LOCATIONS. 29 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.