The Padlock, cataloged under National Stock Number 5340-01-007-4403, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Master Lock Company Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-007-4403 |
| Primary Part Number | 81LJCN |
| Item Name | Padlock |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Master Lock Company Llc |
| Status | ACTIVE |
| Shackle Clearance | 2.625 INCHES NOMINAL IN |
| Operating Mechanism Type | PIN TUMBLER |
| Chain Length | 9.000 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Shackle Diameter | 0.312 INCHES NOMINAL IN |
| 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 81LJCN PRIMARY | Master Lock Company Llc (USA) |
| Reference | Meaning |
|---|---|
| 81LJC | 5/9 Secondary reference Master Lock Company Llc |
| 81LJCH | 5/9 Secondary reference Master Lock Company Llc |
| 81 1/2C2 5/8 | 5/9 Secondary reference Master Lock Company Llc |
NSN 5340-01-007-4403 is a Padlock, manufactured by Master Lock Company Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-007-4403 has 1 manufacturer part number on file: 81LJCN (Master Lock Company Llc).
Key specifications for 81LJCN: Shackle Clearance: 2.625 INCHES NOMINAL IN; Operating Mechanism Type: PIN TUMBLER; Overall Width: 1.750 INCHES NOMINAL IN; Chain Length: 9.000 INCHES NOMINAL IN. 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.