The Circuit Breaker, cataloged under National Stock Number 5925-01-263-5966, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Raytheon Company Dba Raytheon Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-263-5966 |
| Primary Part Number | 28812-000 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Bushing Length | 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 250.0 AC AND 50.0 DC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING |
| Actuator Position Designation | BETWEEN POLE ONE AND TWO |
| Frequency in Hertz | 50.0 OR 60.0 ALL LOCATIONS |
| Unpackaged Unit Weight | 2.400 OUNCES NOMINAL OZ |
| Center to Center Distance Between Terminals Parallel to Width | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 135.0 ALL LOCATIONS |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 1.294 INCHES MINIMUM AND 1.314 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 2 |
| Mounting Surface to Terminal End Distance | 1.930 INCHES MINIMUM AND 1.990 INCHES MAXIMUM IN |
| Maximum Continuous Load Current Rating Per Pole | 4.0 AMPERES AC AND 4.0 AMPERES DC ALL LOCATIONS |
| Trip Release Characteristic | TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 1000.0 AC AND 1000.0 DC ALL LOCATIONS |
| Nominal Thread Size | 0.375 INCHES IN |
| Body Length | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 1.000 MINIMUM AT 200 PCT AND 15.000 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 1 PUSH-PULL |
| Inclosure Protection Type for Which Designed | SHOCK RESISTANT AND VIBRATION RESISTANT |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Terminal Type and Quantity | 4 TAB, SOLDER LUG |
| Special Handling Feature | MAGNETIC |
| 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 |
|---|---|
| 28812-000 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| B21-4-4.00A-02-31 | 5/2 Secondary reference U.S. Government activity |
| B21-4-4.00A-02-31 | C/1 Advisory reference — outside the item-of-supply concept Airpak Products Corporation Dba Airpak Products Corp |
NSN 5925-01-263-5966 is a Circuit Breaker, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-263-5966 has 1 manufacturer part number on file: 28812-000 (Raytheon Company Dba Raytheon Co).
Key specifications for 28812-000: Bushing Length: 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN; Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 250.0 AC AND 50.0 DC 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.