The Armor,supplemental,small Arms-Fr, cataloged under National Stock Number 2540-01-579-9975, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2540-01-579-9975 |
| Primary Part Number | 12509444-002 |
| Item Name | Armor,supplemental,small Arms-Fr |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Design Type | METAL |
| Supplementary Features | MATERIAL: ASTM B209, FINISH: FINAL PROTECTIVE FINISH IAW 12420325, METHOD 2 OR 10, WEIGHT: 0.9 KG KG |
| Overall Thickness | 0.125 INCHES NOMINAL IN |
| Shape | STRAIGHT |
| Material | ALUMINUM ALLOY 6061 |
| Mounting Attachment | NOT INCLUDED |
| Mounting Type | BOLT DOWN |
| 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 |
|---|---|
| 12509444-002 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12509444 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2540-01-579-9975 is a Armor,supplemental,small Arms-Fr, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-579-9975 has 1 manufacturer part number on file: 12509444-002 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 2590-01-580-4429. Verify interchangeability with system specifications before substitution.
Key specifications for 12509444-002: Design Type: METAL; Supplementary Features: MATERIAL: ASTM B209, FINISH: FINAL PROTECTIVE FINISH IAW 12420325, METHOD 2 OR 10, WEIGHT: 0.9 KG KG; Overall Thickness: 0.125 INCHES NOMINAL IN; Shape: STRAIGHT. 7 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 2540-01-579-9975 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.