The Circuit Breaker, cataloged under National Stock Number 5925-01-189-8052, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Elliott Machine Works Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5925-01-189-8052 |
| Primary Part Number | A10858 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Elliott Machine Works Inc |
| Status | ACTIVE |
| Bushing Length | 0.450 INCHES NOMINAL IN |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 250.0 AC AND 24.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 1 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 | 140.0 SINGLE LOCATION |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Body Width | 0.560 INCHES NOMINAL IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 1.620 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 70.0 AMPERES AC AND 70.0 AMPERES DC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 1000.0 AC AND 1000.0 DC SINGLE LOCATION |
| Nominal Thread Size | 0.438 INCHES IN |
| Body Length | 1.380 INCHES NOMINAL IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 8.000 MINIMUM AT 200 PCT AND 35.000 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Manual Actuator Type and Quantity | 1 PUSH BUTTON |
| Inclosure Protection Type for Which Designed | FUNGUS RESISTANT |
| Thread Quantity Per Inch | 28 |
| Material | PLASTIC CASE |
| Actuator Function | RESET |
| Trip Release Ambient Temp Rating | 77.0 FAHRENHEIT NOMINAL SINGLE LOCATION DEGF |
| Terminal Type and Quantity | 2 TAB W/SCREW |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Thread Series Designator | UNEF |
| Trip Release Method | THERMAL SINGLE 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 |
|---|---|
| A10858 | Elliott Machine Works Inc (USA) |
| Reference | Meaning |
|---|---|
| 1648-009-070 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5925-01-189-8052 is a Circuit Breaker, manufactured by Elliott Machine Works Inc, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-189-8052 has 1 manufacturer part number on file: A10858 (Elliott Machine Works Inc).
Key specifications for A10858: Bushing Length: 0.450 INCHES NOMINAL IN; Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 250.0 AC AND 24.0 DC SINGLE 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.