The Circuit Breaker, cataloged under National Stock Number 5925-01-261-9537, 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30 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-261-9537 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Status | ACTIVE |
| Bushing Length | 0.099 INCHES MINIMUM AND 0.099 INCHES MINIMUM AND 0.161 INCHES MAXIMUM0.161 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 ALL LOCATIONS |
| Mounting Facility Type and Quantity | 6 THREADED HOLE(S)6 THREADED HOLE(S) |
| Actuator Position Designation | AT EACH POLE |
| Switch Terminal Type | TAB, SOLDER LUG |
| Frequency in Hertz | 400.0 ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Width | 1.629 INCHES MINIMUM AND 1.629 INCHES MINIMUM AND 1.691 INCHES MAXIMUM1.691 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGEDMODERATELY RUGGED |
| Body Style | MULTIPOLE-MULTIPLE ACTUATOR TYPEMULTIPOLE-MULTIPLE ACTUATOR TYPE |
| Switch Voltage Rating and Type in Volts | 240.0 AC AND 50.0 DC |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 150.0 ALL LOCATIONS |
| External Actuator Linkage Arrangement | ONE, TWO, AND THREE LINKED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 0.719 INCHES MINIMUM AND 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM0.781 INCHES MAXIMUM IN |
| Arc Quenching Method | MAGNETIC BLOWOUTMAGNETIC BLOWOUT |
| Switch Location and Position Designation | INTERNAL AT POLE ONE |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 1.969 INCHES MINIMUM AND 1.969 INCHES MINIMUM AND 2.031 INCHES MAXIMUM2.031 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSEGENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 33 |
| Mounting Surface to Terminal End Distance | 2.032 INCHES MAXIMUM2.032 INCHES MAXIMUM IN |
| Maximum Continuous Load Current Rating Per Pole | 12.5 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 1000.0 AC ALL LOCATIONS |
| Nominal Thread Size | 0.138 INCHES IN |
| Specification/standard Data | 81349-MIL-C-55629/12 GOVERNMENT SPECIFICATION |
| Body Length | 2.219 INCHES MINIMUM AND 2.219 INCHES MINIMUM AND 2.281 INCHES MAXIMUM2.281 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 0.150 MINIMUM AT 200 PCT AND 1.900 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 3 TOGGLE |
| 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-C-55629/12 | 5/9 Secondary reference U.S. Government activity |
| M55629/12-090 | 2/2 Government specification standardization U.S. Government activity |
| MIL-PRF-55629/12 | 4/1 Identification reference U.S. Government activity |
NSN 5925-01-261-9537 is a Circuit Breaker, classified under FSC 5925, Circuit Breakers. Status: active.
Key specifications for 5925-01-261-9537: Bushing Length: 0.099 INCHES MINIMUM AND 0.099 INCHES MINIMUM AND 0.161 INCHES MAXIMUM0.161 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 ALL LOCATIONS. 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.