The Circuit Breaker, cataloged under National Stock Number 5925-00-552-4066, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is U S Dept of Transportation Federal Aviation Administration. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-00-552-4066 |
| Primary Part Number | AM12M6-3-5-115-4 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | U S Dept of Transportation Federal Aviation Administration |
| Status | ACTIVE |
| Reset Method | AUTOMATIC |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 115.0 AC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 2 THREADED BUSHING |
| Actuator Position Designation | AT POLE ONE |
| Frequency in Hertz | 60.0 SINGLE LOCATION |
| Body Style | SINGLE POLE TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 135.0 SINGLE LOCATION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 2.062 INCHES NOMINAL IN |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Body Width | 0.750 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 2.471 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 3.5 AMPERES AC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 2000.0 AC SINGLE LOCATION |
| Nominal Thread Size | 0.138 INCHES IN |
| Body Length | 2.500 INCHES NOMINAL IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 6.250 NOMINAL AT 200 PCT AND 2.500 NOMINAL AT 300 PCT SINGLE LOCATION |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC CASE |
| Actuator Function | RESET |
| Terminal Type and Quantity | 2 THREADED STUD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Boss Height | 0.140 INCHES NOMINAL IN |
| Trip Release Method | MAGNETIC-HYDRAULIC SINGLE LOCATION |
| Center to Center Distance Between Terminals Parallel to Length | 1.938 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 | N |
| Part Number | Manufacturer |
|---|---|
| AM12M6-3-5-115-4 PRIMARY | U S Dept of Transportation Federal Aviation Administration (USA) |
| 271-1290P10 | Raytheon Company Div Corp (USA) |
| Reference | Meaning |
|---|---|
| 271-1290P10 | 3/2 Design control — primary reference U.S. Government activity |
| 70-613KMG6-3.5-115AC4 | 5/9 Secondary reference Iron City Tool Works |
| AM12M6-3-5-115-4 | 5/9 Secondary reference Eaton Corp Heinemann Products Commercial Controls Div |
NSN 5925-00-552-4066 is a Circuit Breaker, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-00-552-4066 has 2 manufacturer part numbers on file: AM12M6-3-5-115-4 (U S Dept of Transportation Federal Aviation Administration), 271-1290P10 (Raytheon Company Div Corp).
Key specifications for AM12M6-3-5-115-4: Reset Method: AUTOMATIC; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 115.0 AC SINGLE LOCATION; Mounting Facility Type and Quantity: 2 THREADED BUSHING. 28 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.