The Circuit Breaker, cataloged under National Stock Number 5925-01-451-2571, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Airbus Defence and Space Limited. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5925-01-451-2571 |
| Primary Part Number | 3803-50540-40-4 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Airbus Defence and Space Limited |
| Status | ACTIVE |
| Body Style | RECTANGULAR DIMENSIONAL ENVELOPE |
| Pole Quantity | 2 |
| Maximum Continuous Load Current Rating Per Pole | 10.000 AMPERES DC 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 |
|---|---|
| 3803-50540-40-4 | Airbus Defence and Space Limited (GBR) |
| 3803-50540 | Airbus Defence and Space Limited (GBR) |
| APGN-66-1-65-103-C-00 | Eao Ltd (GBR) |
| Reference | Meaning |
|---|---|
| APGN-66-1-65-103-C-00 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5925-01-451-2571 is a Circuit Breaker, manufactured by Airbus Defence and Space Limited, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-451-2571 has 3 manufacturer part numbers on file: 3803-50540-40-4 (Airbus Defence and Space Limited), 3803-50540 (Airbus Defence and Space Limited), APGN-66-1-65-103-C-00 (Eao Ltd).
Key specifications for 3803-50540-40-4: Body Style: RECTANGULAR DIMENSIONAL ENVELOPE; Pole Quantity: 2; Maximum Continuous Load Current Rating Per Pole: 10.000 AMPERES DC ALL LOCATIONS; Special Features: 50 TO 60 HZ LONG DELAY,HIGH PULSE;277 VOLTS;BLACK,NO MARKINGS HANDLE/ACTUAROR,TOGGLE HANDLE COLOR. 3 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.