The Padlock, cataloged under National Stock Number 5340-01-668-2281, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Master Lock Company Llc Dba Master Lock Div Master Lock Company. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-668-2281 |
| Primary Part Number | 1KA |
| Item Name | Padlock |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Master Lock Company Llc Dba Master Lock Div Master Lock Company |
| Status | ACTIVE |
| Shackle Clearance | 24.0 MILLIMETERS NOMINAL MM |
| Features Provided | KEYED ALIKE |
| Color | ALUMINUM |
| Material | STEEL SHACKLE |
| Shackle Diameter | 8.0 MILLIMETERS NOMINAL MM |
| Construction | LAMINATED |
| 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 |
|---|---|
| 1KA PRIMARY | Master Lock Company Llc Dba Master Lock Div Master Lock Company (USA) |
| MD00003597 | Mack Defense Llc Dba Mack Defense Llc (USA) |
| 7423035440 | Arquus (FRA) |
NSN 5340-01-668-2281 is a Padlock, manufactured by Master Lock Company Llc Dba Master Lock Div Master Lock Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-668-2281 has 3 manufacturer part numbers on file: 1KA (Master Lock Company Llc Dba Master Lock Div Master Lock Company), MD00003597 (Mack Defense Llc Dba Mack Defense Llc), 7423035440 (Arquus).
Key specifications for 1KA: Overall Height: 24.0 MILLIMETERS NOMINAL MM; Shackle Clearance: 24.0 MILLIMETERS NOMINAL MM; Features Provided: KEYED ALIKE; Overall Width: 44.0 MILLIMETERS NOMINAL MM. 6 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.