The Circuit Breaker, cataloged under National Stock Number 5925-01-044-3890, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. Government technical data includes 30 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-044-3890 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 50.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Actuator Position Designation | AT POLE ONE |
| Switch Terminal Type | KNIFE BLADE |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | SINGLE POLE TYPE |
| Switch Voltage Rating and Type in Volts | 250.0 AC AND 50.0 DC |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 SINGLE LOCATION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 2.046 INCHES MINIMUM AND 2.078 INCHES MAXIMUM IN |
| Arc Quenching Method | MAGNETIC BLOWOUT |
| Switch Location and Position Designation | INTERNAL AT POLE ONE |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Body Width | 0.730 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 2.800 INCHES MAXIMUM IN |
| Thread Pitch Diameters | +0.1177 TO 0.1214 INCHES IN |
| Maximum Continuous Load Current Rating Per Pole | 25.0 AMPERES DC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 2000.0 DC SINGLE LOCATION |
| Nominal Thread Size | 0.138 INCHES IN |
| Specification/standard Data | 81349-MIL-C-55629/2 GOVERNMENT SPECIFICATION |
| Body Length | 2.510 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 0.180 MINIMUM AT 200 PCT AND 2.000 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Switch Current Rating and Type in Amps | 10.0 AC AND 2.0 DC |
| Inclosure Protection Type for Which Designed | FUNGUS RESISTANT AND MOISTURE RESISTANT AND SALT SPRAY PROOF AND SHOCK RESISTANT AND VIBRATION RESISTANT |
| Test Data Document | 81349-MIL-C-55629 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| 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 |
|---|---|
| AM1-D3-A-25-3 | C/1 Advisory reference — outside the item-of-supply concept Eaton Corp Heinemann Products Commercial Controls Div |
| M55629/2-107 | 2/2 Government specification standardization U.S. Government activity |
| MIL-C-55629/2 | 5/9 Secondary reference U.S. Government activity |
| MIL-PRF-55629/2 | 4/1 Identification reference U.S. Government activity |
| APL-1-1R0-55629/2-107 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AM1-Z24-107 | C/1 Advisory reference — outside the item-of-supply concept Eaton Corp Heinemann Products Commercial Controls Div |
NSN 5925-01-044-3890 is a Circuit Breaker, classified under FSC 5925, Circuit Breakers. Status: active.
Key specifications for 5925-01-044-3890: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 50.0 DC SINGLE LOCATION; Mounting Facility Type and Quantity: 2 THREADED HOLE(S). 30 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.