The Circuit Breaker, cataloged under National Stock Number 5925-00-156-4044, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 28 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-00-156-4044 |
| Primary Part Number | 5R0646 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 110.0 AC AND 30.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Actuator Position Designation | AT POLE ONE |
| Frequency in Hertz | 400.0 SINGLE LOCATION |
| Unpackaged Unit Weight | 5.000 OUNCES NOMINAL OZ |
| Body Style | SINGLE POLE TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 130.0 SINGLE LOCATION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 2.406 INCHES NOMINAL IN |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Body Width | 1.875 INCHES NOMINAL IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Unthreaded Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 1.312 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 150.0 AMPERES AC AND 150.0 AMPERES DC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 900.0 AC AND 900.0 DC SINGLE LOCATION |
| Trip Delay Time in Seconds Per Rated Continuous Current | 6.000 MINIMUM AT 200 PCT AND 50.000 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Manual Actuator Type and Quantity | 1 PUSH BUTTON |
| Inclosure Protection Type for Which Designed | FUNGUS RESISTANT |
| Material | PLASTIC CASE |
| Actuator Function | RESET |
| Trip Release Ambient Temp Rating | 25.0 CELSIUS MAXIMUM SINGLE LOCATION DEGC |
| Terminal Type and Quantity | 2 SCREW |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| 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 |
|---|---|
| 5R0646 | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 3712510 | D/9 Drawing number reference only Oshkosh Defense Llc |
| SDLM-150 | 3/2 Design control — primary reference U.S. Government activity |
| CDLM-150 | 5/9 Secondary reference U.S. Government activity |
NSN 5925-00-156-4044 is a Circuit Breaker, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-00-156-4044 has 1 manufacturer part number on file: 5R0646 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 5R0646: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 110.0 AC AND 30.0 DC SINGLE LOCATION; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S). 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.