The Armor,supplemental,small Arms-Fr, cataloged under National Stock Number 2540-01-548-6931, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp. 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. 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 | 2540-01-548-6931 |
| Primary Part Number | 4001588 |
| Item Name | Armor,supplemental,small Arms-Fr |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
| Status | ACTIVE |
| Design Type | METAL |
| Shape | IRREGULAR |
| Mounting Attachment | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 4001588 PRIMARY | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA) |
NSN 2540-01-548-6931 is a Armor,supplemental,small Arms-Fr, manufactured by General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-548-6931 has 1 manufacturer part number on file: 4001588 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp).
1 possible match (shared part number, not a government interchangeability claim): 5920-01-582-3661. Verify interchangeability with system specifications before substitution.
Key specifications for 4001588: Design Type: METAL; Shape: IRREGULAR; Overall Length: 1365.0 MILLIMETERS NOMINAL MM; Overall Width: 343.0 MILLIMETERS NOMINAL MM. 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 2540-01-548-6931 has DEMIL Code F. 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.