The Circuit Breaker, cataloged under National Stock Number 5925-01-470-0049, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Irwin International, Inc. Dba Irwin International Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-470-0049 |
| Primary Part Number | 7277-2-10 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Irwin International, Inc. Dba Irwin International Inc |
| Status | ACTIVE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 150.0 SINGLE LOCATION |
| Trip Release Ambient Temp Rating | 25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC |
| 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 |
|---|---|
| 7277-2-10 PRIMARY | Irwin International, Inc. Dba Irwin International Inc (USA) |
| Reference | Meaning |
|---|---|
| 7277-2-10 | 3/9 Design control — primary reference Aircraft Spruce and Specialty Co a Div of Honeywell Inc |
| 72772-10A | 5/9 Secondary reference Apex Aircraft |
NSN 5925-01-470-0049 is a Circuit Breaker, manufactured by Irwin International, Inc. Dba Irwin International Inc, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-470-0049 has 1 manufacturer part number on file: 7277-2-10 (Irwin International, Inc. Dba Irwin International Inc).
1 possible match (shared part number, not a government interchangeability claim): 5925-01-470-7346. Verify interchangeability with system specifications before substitution.
Key specifications for 7277-2-10: Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent: 150.0 SINGLE LOCATION; Special Features: 10 AMPS AGE RATING; TRIP TIME - SECONDS 200 PERCENT 2-35, 500 PERCENT .15-1.75, 100 PERCENT .028-.8; Trip Release Ambient Temp Rating: 25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC. 2 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.