The Circuit Breaker, cataloged under National Stock Number 5925-01-129-6220, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-129-6220 |
| Primary Part Number | 1857432 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Bushing Length | 0.380 INCHES MAXIMUM IN |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SECOND LOCATION |
| Internal Trip Release Configuration | SERIES TRIP FIRST LOCATION |
| Internal Trip Release Configuration | RELAY TRIP THIRD LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 240.0 AC FIRST LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 240.0 AC SECOND LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 12.0 DC THIRD LOCATION |
| Mounting Facility Type and Quantity | 2 THREADED BUSHING WITH PANEL SEAL |
| Actuator Position Designation | AT POLE TWO |
| Frequency in Hertz | 400.0 FIRST LOCATION |
| Frequency in Hertz | 400.0 SECOND LOCATION |
| Unpackaged Unit Weight | 5.400 OUNCES NOMINAL OZ |
| Center to Center Distance Between Terminals Parallel to Width | 0.625 INCHES NOMINAL 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 | 1.987 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 3 |
| Mounting Surface to Terminal End Distance | 1.780 INCHES MAXIMUM IN |
| Maximum Continuous Load Current Rating Per Pole | 12.0 AMPERES AC FIRST LOCATION |
| Maximum Continuous Load Current Rating Per Pole | 12.0 AMPERES AC SECOND LOCATION |
| Trip Release Characteristic | INSTANTANEOUS THIRD LOCATION |
| Trip Release Characteristic | TIME DELAY FIRST LOCATION |
| Trip Release Characteristic | TIME DELAY SECOND LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 300.0 AC SECOND LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 300.0 AC FIRST LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 500.0 DC THIRD LOCATION |
| 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 |
|---|---|
| 1857432 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| AP114-6092-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5925-01-129-6220 is a Circuit Breaker, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-129-6220 has 1 manufacturer part number on file: 1857432 (Northrop Grumman Systems Corporation).
Key specifications for 1857432: Bushing Length: 0.380 INCHES MAXIMUM IN; Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SECOND LOCATION; Internal Trip Release Configuration: SERIES TRIP FIRST 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.