The Circuit Breaker Box Subassembly, cataloged under National Stock Number 5925-01-014-7183, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Schneider Electric Usa, Inc.. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5925-01-014-7183 |
| Primary Part Number | QO440MG150RB |
| Item Name | Circuit Breaker Box Subassembly |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Schneider Electric Usa, Inc. |
| Status | ACTIVE |
| Main Line Maximum Current Rating in Amps | 150.0 |
| Entrance Type and Quantity | 12 DOUBLE CONCENTRIC KNOCKOUT AND 5 FOUR CONCENTRIC KNOCKOUT |
| Fragility Factor | MODERATELY RUGGED |
| Mounting Method | UNTHREADED HOLE(S) |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Unthreaded Mounting Hole Diameter | 0.262 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR, SURFACE MOUNTING |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 31.562 INCHES NOMINAL IN |
| Features Provided | COVER |
| Circuit Breaker Type and Quantity Accommodated | 40 SINGLE POLE |
| System for Which Designed | FOUR WIRE THREE PHASE |
| Surface Treatment | PAINT |
| Main Line Maximum AC Voltage Rating in Volts | 240.0 |
| Entrance Diameter Numeric Designator | 0.500/0.750 AND 1.250/1.500/2.000/2.500 |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 4.500 INCHES NOMINAL IN |
| Cable Entrance Diameter | 2.500 INCHES NOMINAL IN |
| Material | STEEL |
| Standard Mounting Pattern Designator | 3 POINT-TRIANGULAR |
| 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 |
|---|---|
| QO440MG150RB PRIMARY | Schneider Electric Usa, Inc. (USA) |
| Reference | Meaning |
|---|---|
| Q0440MG150 | 5/9 Secondary reference Schneider Electric Usa, Inc. |
NSN 5925-01-014-7183 is a Circuit Breaker Box Subassembly, manufactured by Schneider Electric Usa, Inc., classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-014-7183 has 1 manufacturer part number on file: QO440MG150RB (Schneider Electric Usa, Inc.).
Key specifications for QO440MG150RB: Overall Height: 34.125 INCHES NOMINAL IN; Main Line Maximum Current Rating in Amps: 150.0; Entrance Type and Quantity: 12 DOUBLE CONCENTRIC KNOCKOUT AND 5 FOUR CONCENTRIC KNOCKOUT; Fragility Factor: MODERATELY RUGGED. 18 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.