The Circuit Breaker, cataloged under National Stock Number 5925-01-355-9825, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5925-01-355-9825 |
| Primary Part Number | AM1A3A4-2 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | U S Dept of Transportation Federal Aviation Administration |
| Status | ACTIVE |
| Operating Voltage Type and Rating Per Pole in Volts | 120.0 AC SINGLE LOCATION |
| Frequency in Hertz | 60.0 SINGLE LOCATION |
| Body Style | SINGLE POLE TYPE |
| Body Width | 0.750 INCHES NOMINAL IN |
| Body Height | 1.981 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Maximum Continuous Load Current Rating Per Pole | 4.0 AMPERES AC SINGLE LOCATION |
| Trip Release Characteristic | INSTANTANEOUS SINGLE LOCATION |
| Body Length | 2.500 INCHES NOMINAL IN |
| Manual Actuator Type and Quantity | 1 PUSH-PULL |
| Boss Height | 0.140 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 |
|---|---|
| AM1A3A4-2 PRIMARY | U S Dept of Transportation Federal Aviation Administration (USA) |
| Reference | Meaning |
|---|---|
| AM1A3A4-2 | 5/9 Secondary reference Eaton Corp Heinemann Products Commercial Controls Div |
NSN 5925-01-355-9825 is a Circuit Breaker, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-355-9825 has 1 manufacturer part number on file: AM1A3A4-2 (U S Dept of Transportation Federal Aviation Administration).
Key specifications for AM1A3A4-2: Operating Voltage Type and Rating Per Pole in Volts: 120.0 AC SINGLE LOCATION; Frequency in Hertz: 60.0 SINGLE LOCATION; Body Style: SINGLE POLE TYPE; Body Width: 0.750 INCHES NOMINAL IN. 11 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.