The Circuit Breaker, cataloged under National Stock Number 5925-01-472-9133, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5925-01-472-9133 |
| Primary Part Number | ETN3251 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| ETN3251 PRIMARY | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
NSN 5925-01-472-9133 is a Circuit Breaker, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-472-9133 has 1 manufacturer part number on file: ETN3251 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5925-01-483-1599. Verify interchangeability with system specifications before substitution.
Key specifications for ETN3251: Special Features: FR-250 AMP: ID-ETN 3251; End Item Identification: CIRCUIT BREAKER AQB-LF252. 0 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.