The Lock Bar, cataloged under National Stock Number 5340-01-546-5396, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Gk Mechanical Systems Llc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Item Name | Lock Bar |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Gk Mechanical Systems Llc (CAGE 3BU57) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-546-5396 |
| Primary Part Number | 22-1239-01-01 ITEM NO.1 |
| Item Name | Lock Bar |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Gk Mechanical Systems 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 22-1239-01-01 ITEM NO.1 PRIMARY | Gk Mechanical Systems Llc (USA) |
| 22-1239-01-02 | Gk Mechanical Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 22-1239-01-01 | D/9 Drawing number reference only Gk Mechanical Systems Llc |
NSN 5340-01-546-5396 is a Lock Bar, manufactured by Gk Mechanical Systems Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-546-5396 has 2 manufacturer part numbers on file: 22-1239-01-01 ITEM NO.1 (Gk Mechanical Systems Llc), 22-1239-01-02 (Gk Mechanical Systems Llc).
4 possible matches (shared part number, not a government interchangeability claim): 5340-01-546-5436, 5340-01-546-5469, 5340-01-546-5473. Verify interchangeability with system specifications before substitution.
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.