The Circuit Breaker, cataloged under National Stock Number 5925-00-855-3987, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Te Connectivity Corporation. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-00-855-3987 |
| Primary Part Number | W31-X2M1G-20 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Bushing Length | 0.625 INCHES NOMINAL IN |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 250.0 AC AND 50.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING |
| Actuator Position Designation | AT POLE ONE |
| Frequency in Hertz | 400.0 SINGLE LOCATION |
| Unpackaged Unit Weight | 0.125 POUNDS NOMINAL LBS |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | SINGLE POLE TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 135.0 SINGLE LOCATION |
| Arc Quenching Method | AIR |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Body Width | 0.690 INCHES NOMINAL IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 2.035 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 20.0 AMPERES AC AND 20.0 AMPERES DC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 1000.0 AC AND 2500.0 DC SINGLE LOCATION |
| Nominal Thread Size | 0.469 INCHES IN |
| Body Length | 1.375 INCHES NOMINAL IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 6.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Inclosure Protection Type for Which Designed | HUMIDITY PROOF AND SALT SPRAY PROOF AND SHOCKPROOF AND VIBRATIONPROOF |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Trip Release Ambient Temp Rating | 25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC |
| Terminal Type and Quantity | 2 TAB W/SCREW |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| W31-X2M1G-20 PRIMARY | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| 112-220-101 | 5/9 Secondary reference Te Connectivity Corporation |
| 8792069-3 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| W31X2A1G-20 | 5/9 Secondary reference Te Connectivity Corporation |
| 112-220-101 | 5/9 Secondary reference Wood Electric Operations Potter and Brumfield Div Amf Inc |
NSN 5925-00-855-3987 is a Circuit Breaker, manufactured by Te Connectivity Corporation, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-00-855-3987 has 1 manufacturer part number on file: W31-X2M1G-20 (Te Connectivity Corporation).
Key specifications for W31-X2M1G-20: Bushing Length: 0.625 INCHES NOMINAL IN; Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 250.0 AC AND 50.0 DC SINGLE LOCATION. 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.