The Armor Set,supplemental,small Arm, cataloged under National Stock Number 2540-01-532-3520, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Tower Defense & Aerospace Llc Dba W Industries. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: KT.
| Item Name | Armor Set,supplemental,small Arm |
| FSC / FSG | 2540 — Vehicular Furniture and Accessories (FSG 25) |
| Manufacturers | Amz Alabama Inc. (CAGE 076M6); U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207); Tower Defense & Aerospace Llc Dba W Industries (CAGE 34KV4) |
| Parameter | Value |
|---|---|
| NSN | 2540-01-532-3520 |
| Primary Part Number | 4309519 |
| Item Name | Armor Set,supplemental,small Arm |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Tower Defense & Aerospace Llc Dba W Industries |
| Status | ACTIVE |
| 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 | KT |
| Part Number | Manufacturer |
|---|---|
| 4309519 | Amz Alabama Inc. (USA) |
| 57K4306 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 4309519 PRIMARY | Tower Defense & Aerospace Llc Dba W Industries (USA) |
| Reference | Meaning |
|---|---|
| 4265312 | 5/9 Secondary reference U.S. Government activity |
| 4309519 | 3/2 Design control — primary reference U.S. Government activity |
| 4309519 | 5/9 Secondary reference Demmer Corporation |
| 4309519 | 5/9 Secondary reference Lapeer Industries, Inc |
NSN 2540-01-532-3520 is a Armor Set,supplemental,small Arm, manufactured by Tower Defense & Aerospace Llc Dba W Industries, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-532-3520 has 3 manufacturer part numbers on file: 4309519 (Amz Alabama Inc.), 57K4306 (U S Army Tank Automotive Command Amsta-Im-Mm), 4309519 (Tower Defense & Aerospace Llc Dba W Industries).
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 2540-01-532-3520 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.