The Circuit Breaker, cataloged under National Stock Number 5925-01-221-7874, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Star Manufacturing International Inc. Dba Lang Manufacturing Company. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5925-01-221-7874 |
| Primary Part Number | 31800-04 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Star Manufacturing International Inc. Dba Lang Manufacturing Company |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 480.0 AC ALL LOCATIONS |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Fragility Factor | MODERATELY RUGGED |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 50.0 AMPERES AC ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 1000.0 AC ALL LOCATIONS |
| Inclosure Protection Type for Which Designed | GENERAL PURPOSE |
| Material | PLASTIC CASE |
| Special Handling Feature | MAGNETIC |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Trip Release Method | MAGNETIC ALL LOCATIONS |
| 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 |
|---|---|
| 31800-04 PRIMARY | Star Manufacturing International Inc. Dba Lang Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| 31800-04 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5925-01-221-7874 is a Circuit Breaker, manufactured by Star Manufacturing International Inc. Dba Lang Manufacturing Company, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-221-7874 has 1 manufacturer part number on file: 31800-04 (Star Manufacturing International Inc. Dba Lang Manufacturing Company).
Key specifications for 31800-04: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 480.0 AC ALL LOCATIONS; Frequency in Hertz: 60.0 ALL LOCATIONS. 15 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.