The Shell,seat Assembly, cataloged under National Stock Number 2540-00-438-0082, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Milsco Mfg Co Unit of Jason Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 2540-00-438-0082 |
| Primary Part Number | C1978 |
| Item Name | Shell,seat Assembly |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Milsco Mfg Co Unit of Jason Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTING OF FRONT AND REAR BRACKET,2 STRIPS P/N C1841; 19.500 IN.SEAT H IN |
| 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 |
|---|---|
| C1978 PRIMARY | Milsco Mfg Co Unit of Jason Inc (USA) |
| Reference | Meaning |
|---|---|
| 181689H1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2540-00-438-0082 is a Shell,seat Assembly, manufactured by Milsco Mfg Co Unit of Jason Inc, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-00-438-0082 has 1 manufacturer part number on file: C1978 (Milsco Mfg Co Unit of Jason Inc).
1 possible match (shared part number, not a government interchangeability claim): 4310-01-368-0150. Verify interchangeability with system specifications before substitution.
Key specifications for C1978: General Characteristics Item Description: CONSISTING OF FRONT AND REAR BRACKET,2 STRIPS P/N C1841; 19.500 IN.SEAT H IN. 1 specification is 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.