The Key Blank, cataloged under National Stock Number 5340-01-253-4098, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Key Blank |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Marine & Industrial Transmissions Ltd (CAGE U2621); Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-253-4098 |
| Primary Part Number | M-2034-AW |
| Item Name | Key Blank |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| M-2027-AB | Marine & Industrial Transmissions Ltd (GBR) |
| M-2034-AW | Marine & Industrial Transmissions Ltd (GBR) |
| M-2034-AW PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| Reference | Meaning |
|---|---|
| M-2034-AW | 5/9 Secondary reference Twin Disc International S a |
| M-2027-AB | 5/9 Secondary reference Twin Disc International S a |
NSN 5340-01-253-4098 is a Key Blank, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-253-4098 has 3 manufacturer part numbers on file: M-2027-AB (Marine & Industrial Transmissions Ltd), M-2034-AW (Marine & Industrial Transmissions Ltd), M-2034-AW (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
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.