The Circuit Breaker, cataloged under National Stock Number 5925-00-261-8166, 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30 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-00-261-8166 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Status | ACTIVE |
| Reset Method | MANUALMANUAL |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONSSERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 250.0 AC ALL LOCATIONS250.0 AC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S)4 THREADED HOLE(S) |
| Actuator Position Designation | AT EACH POLEAT EACH POLE |
| Switch Terminal Type | TAB, SOLDER LUGTAB, SOLDER LUG |
| Frequency in Hertz | 400.0 ALL LOCATIONS400.0 ALL LOCATIONS |
| Unpackaged Unit Weight | 7.400 OUNCES NOMINAL7.400 OUNCES NOMINAL OZ |
| Center to Center Distance Between Terminals Parallel to Width | 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN |
| Fragility Factor | MODERATELY RUGGEDMODERATELY RUGGED |
| Body Style | MULTIPOLE-MULTIPLE ACTUATOR TYPEMULTIPOLE-MULTIPLE ACTUATOR TYPE |
| Switch Voltage Rating and Type in Volts | 250.0 AC AND 250.0 AC AND 50.0 DC50.0 DC |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 115.0 ALL LOCATIONS115.0 ALL LOCATIONS |
| External Actuator Linkage Arrangement | ONE AND TWO LINKEDONE AND TWO LINKED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 2.050 INCHES MINIMUM AND 2.050 INCHES MINIMUM AND 2.070 INCHES MAXIMUM2.070 INCHES MAXIMUM IN |
| Arc Quenching Method | MAGNETIC BLOWOUTMAGNETIC BLOWOUT |
| Switch Location and Position Designation | INTERNAL AT POLE ONEINTERNAL AT POLE ONE |
| Thread Pitch in Millimeters | 0.500.50 |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONSOVERCURRENT ALL LOCATIONS |
| Body Width | 1.500 INCHES MAXIMUM1.500 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSEGENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 22 |
| Mounting Surface to Terminal End Distance | 2.475 INCHES NOMINAL2.475 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 2.0 AMPERES AC ALL LOCATIONS2.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | TIME DELAY ALL LOCATIONSTIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 5000.0 AC ALL LOCATIONS5000.0 AC ALL LOCATIONS |
| Nominal Thread Size | 3.0 MILLIMETERS3.0 MILLIMETERS MM |
| Body Length | 2.480 INCHES MINIMUM AND 2.480 INCHES MINIMUM AND 2.500 INCHES MAXIMUM2.500 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 2.000 MINIMUM AT 200 PCT AND 2.000 MINIMUM AT 200 PCT AND 22.000 MAXIMUM AT 200 PCT ALL LOCATIONS22.000 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 2 TOGGLE2 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 |
|---|---|
| APL-11-1RE-42-202-MA | 3/2 Design control — primary reference U.S. Government activity |
| APL11-42-0202REMA | 5/9 Secondary reference U.S. Government activity |
NSN 5925-00-261-8166 is a Circuit Breaker, classified under FSC 5925, Circuit Breakers. Status: active.
Key specifications for 5925-00-261-8166: Reset Method: MANUALMANUAL; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONSSERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 250.0 AC ALL LOCATIONS250.0 AC ALL LOCATIONS; Mounting Facility Type and Quantity: 4 THREADED HOLE(S)4 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.