The Circuit Breaker, cataloged under National Stock Number 5925-01-475-0976, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Willburger System Gmbh. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5925-01-475-0976 |
| Primary Part Number | AP-12-1-52-123 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Willburger System Gmbh |
| Status | ACTIVE |
| Bushing Length | 0.380 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals Parallel to Width | 0.625 INCHES NOMINAL IN |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Body Width | 1.250 INCHES MAXIMUM IN |
| Pole Quantity | 2 |
| Mounting Surface to Terminal End Distance | 1.780 INCHES MAXIMUM IN |
| Maximum Continuous Load Current Rating Per Pole | 12.0 AMPERES DC ALL LOCATIONS |
| Body Length | 1.500 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals Parallel to Length | 0.875 INCHES NOMINAL IN |
| 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 |
|---|---|
| AP-12-1-52-123 | Willburger System Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| AP-12-1-52-123 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5925-01-475-0976 is a Circuit Breaker, manufactured by Willburger System Gmbh, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-475-0976 has 1 manufacturer part number on file: AP-12-1-52-123 (Willburger System Gmbh).
Key specifications for AP-12-1-52-123: Bushing Length: 0.380 INCHES MAXIMUM IN; Center to Center Distance Between Terminals Parallel to Width: 0.625 INCHES NOMINAL IN; Body Style: MULTIPOLE-SINGLE ACTUATOR TYPE; Body Width: 1.250 INCHES MAXIMUM IN. 9 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.