The Lock,seat,back, cataloged under National Stock Number 2540-01-454-4069, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2540-01-454-4069 |
| Item Name | Lock,seat,back |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Status | ACTIVE |
| Surface Treatment | CADMIUM |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2584335 | 3/2 Design control — primary reference U.S. Government activity |
| 2584335 | 5/9 Secondary reference Fmc Corp Ordnance Div Opns Plant No 7 |
NSN 2540-01-454-4069 is a Lock,seat,back, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6640-01-733-5878. Verify interchangeability with system specifications before substitution.
Key specifications for 2540-01-454-4069: Overall Length: 7.250 INCHES NOMINAL IN; Surface Treatment: CADMIUM; End Item Identification: 2350-01-081-8138; Material: STEEL. 2 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.