The Cover,circuit Breaker, cataloged under National Stock Number 5925-01-663-8593, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Cover,circuit Breaker |
| FSC / FSG | 5925 — Circuit Breakers (FSG 59) |
| Manufacturers | Lockheed Martin Corporation Div Rotary and Mission Systems (CAGE 16331); Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003) |
| Parameter | Value |
|---|---|
| NSN | 5925-01-663-8593 |
| Primary Part Number | 4027AS1090-01 |
| Item Name | Cover,circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| 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 |
|---|---|
| 4027AS1090-01 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| 4027AS1090 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5925-01-663-8593 is a Cover,circuit Breaker, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-663-8593 has 2 manufacturer part numbers on file: 4027AS1090-01 (Lockheed Martin Corporation Div Rotary and Mission Systems), 4027AS1090 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
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.