The Insulation,vehicular, cataloged under National Stock Number 2540-01-556-3637, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Amz Alabama Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 2540-01-556-3637 |
| Primary Part Number | 4287341 |
| Item Name | Insulation,vehicular |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Amz Alabama Inc. |
| Status | ACTIVE |
| Shape | IRREGULAR |
| Color | GRAY/GREY |
| Material | ALUMINUM INSULATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 4287341 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4287341 | 3/2 Design control — primary reference U.S. Government activity |
| 4287341 | 5/9 Secondary reference Armorstruxx, Llc Div Armorstruxx |
NSN 2540-01-556-3637 is a Insulation,vehicular, manufactured by Amz Alabama Inc., classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-556-3637 has 1 manufacturer part number on file: 4287341 (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-633-8382. Verify interchangeability with system specifications before substitution.
Key specifications for 4287341: Shape: IRREGULAR; Color: GRAY/GREY; End Item Identification: MRAP - UNIQUE NSN - USED ON 3 MRAP VARIANTS; Material: ALUMINUM INSULATION. 3 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.
NSN 2540-01-556-3637 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.