The Circuit Breaker, cataloged under National Stock Number 5925-01-194-3673, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Atlantic Inertial Systems Limited. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-194-3673 |
| Primary Part Number | 283550-1118 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Atlantic Inertial Systems Limited |
| Status | ACTIVE |
| Bushing Length | 0.380 INCHES MAXIMUM IN |
| Reset Method | AUTOMATIC |
| 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 | 1 THREADED BUSHING |
| Ultimate Trip Time Per Pole in Seconds | 5.000 MAXIMUM ALL LOCATIONS |
| Frequency in Hertz | 50.0 OR 60.0 ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Width | 0.625 INCHES NOMINAL IN |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 ALL LOCATIONS |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 1.250 INCHES MAXIMUM IN |
| Pole Quantity | 2 |
| Mounting Surface to Terminal End Distance | 1.780 INCHES MAXIMUM IN |
| Maximum Continuous Load Current Rating Per Pole | 7.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 300.0 AC ALL LOCATIONS |
| Nominal Thread Size | 0.375 INCHES IN |
| Body Length | 1.500 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 5.000 MAXIMUM AT 125 PCT ALL LOCATIONS |
| Thread Quantity Per Inch | 32 |
| Terminal Type and Quantity | 2 WIRE HOOK |
| Thread Series Designator | UNEF |
| Trip Release Method | MAGNETIC ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Length | 0.875 INCHES NOMINAL IN |
| 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 |
|---|---|
| 283550-1118 | Atlantic Inertial Systems Limited (GBR) |
| Reference | Meaning |
|---|---|
| AP-12-1-61-702 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5925-01-194-3673 is a Circuit Breaker, manufactured by Atlantic Inertial Systems Limited, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-194-3673 has 1 manufacturer part number on file: 283550-1118 (Atlantic Inertial Systems Limited).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-631-8496. Verify interchangeability with system specifications before substitution.
Key specifications for 283550-1118: Bushing Length: 0.380 INCHES MAXIMUM IN; Reset Method: AUTOMATIC; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 240.0 AC ALL LOCATIONS. 25 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.