The Locking Device,circuit Breaker, cataloged under National Stock Number 5925-01-659-6663, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Master Lock Company Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Locking Device,circuit Breaker |
| FSC / FSG | 5925 — Circuit Breakers (FSG 59) |
| Manufacturers | Master Lock Company Llc (CAGE 38797) |
| Parameter | Value |
|---|---|
| NSN | 5925-01-659-6663 |
| Primary Part Number | 453L |
| Item Name | Locking Device,circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Master Lock Company Llc |
| 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 |
|---|---|
| 453L PRIMARY | Master Lock Company Llc (USA) |
| Reference | Meaning |
|---|---|
| 13057659 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 5925-01-659-6663 is a Locking Device,circuit Breaker, manufactured by Master Lock Company Llc, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-659-6663 has 1 manufacturer part number on file: 453L (Master Lock Company Llc).
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.