The Circuit Breaker, cataloged under National Stock Number 5925-01-545-1933, 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.. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-545-1933 |
| Primary Part Number | 199590-778032 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. |
| Status | ACTIVE |
| Operating Voltage Type and Rating Per Pole in Volts | 4160.0 AC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 6 UNTHREADED HOLE(S) |
| Frequency in Hertz | 60.0 SINGLE LOCATION |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 2000.0 AMPERES DC SINGLE LOCATION |
| 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 |
|---|---|
| 199590-778032 PRIMARY | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 199590 | D/9 Drawing number reference only L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. |
NSN 5925-01-545-1933 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 5925-01-545-1933 has 1 manufacturer part number on file: 199590-778032 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5925-01-546-2702, 5925-01-577-2507, 5925-01-579-3744. Verify interchangeability with system specifications before substitution.
Key specifications for 199590-778032: Operating Voltage Type and Rating Per Pole in Volts: 4160.0 AC SINGLE LOCATION; Mounting Facility Type and Quantity: 6 UNTHREADED HOLE(S); Frequency in Hertz: 60.0 SINGLE LOCATION; Pole Quantity: 3. 5 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.