The Armor,supplemental,small Arms-Fr, cataloged under National Stock Number 2540-01-643-0597, 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 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2540-01-643-0597 |
| Primary Part Number | 12578152-1 |
| 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 |
| Mounting Hole Quantity | 4 |
| Color Chip Number | 33446 |
| Usage Design | COMBAT VEHICLE |
| Surface Treatment Document and Classification | TAN 686A,CHIP NO 33446,PER FED-STD-595 FED STD ALL TREATMENT RESPONSES A |
| Design Type | METAL |
| Mounting Position | BODY REAR |
| Material Document and Classification | ROLLED HOMOGENEOUS, CLASS 1.SPEC MIL-DTL-12560 ASSN STD ALL MATERIAL RESPONSES |
| Shape | IRREGULAR |
| Component Document Origin | GOVERNMENT |
| Vehicle Identification Designator | M992A3,M109A7 |
| Document Source | 19207 |
| Color | TAN, 686A A |
| Surface Treatment | CARC (CHEMICAL AGENT RESISTANT COATING) |
| Test Data Document | 19207-12578152 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Material | STEEL,ARMOR |
| Mounting Attachment | NOT INCLUDED |
| Mounting Hole Type | SLOTTED ALL HOLES |
| 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 |
|---|---|
| 12578152-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12578152 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2540-01-643-0597 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 2540-01-643-0597 has 1 manufacturer part number on file: 12578152-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-643-0608. Verify interchangeability with system specifications before substitution.
Key specifications for 12578152-1: Mounting Hole Quantity: 4; Color Chip Number: 33446; Usage Design: COMBAT VEHICLE; Surface Treatment Document and Classification: TAN 686A,CHIP NO 33446,PER FED-STD-595 FED STD ALL TREATMENT RESPONSES A. 17 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 2540-01-643-0597 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.