The Armor,supplemental,small Arms-Fr, cataloged under National Stock Number 2540-01-628-4838, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 2540-01-628-4838 |
| Primary Part Number | 12590246 |
| 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 | 12 |
| Usage Design | COMBAT VEHICLE |
| Surface Treatment Document and Classification | MIL STD 171 MIL STD 1ST TREATMENT RESPONSE AND FED STD 595 FED STD 2ND TREATMENT RESPONSE |
| Design Type | METAL |
| Overall Thickness | 0.50 INCHES NOMINAL IN |
| Material Document and Classification | MIL-A 46100 MIL SPEC 1ST MATERIAL RESPONSE AND ASTM A36 ASSN STD 2ND MATERIAL RESPONSE |
| Shape | IRREGULAR |
| Color | GREEN, 383 |
| Surface Treatment | PAINTED |
| Material | STEEL,ARMOR AND STEEL,CARBON |
| Mounting Attachment | NOT INCLUDED |
| Mounting Type | THREAD CONNECTION AND BOLT DOWN |
| Mounting Hole Type | PLAIN AND SLOTTED ALL HOLES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
NSN 2540-01-628-4838 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 2540-01-628-4838 has 2 manufacturer part numbers on file: 12590246 (U S Army Tank Automotive Command Amsta-Im-Mm), LS1057652 (General Dynamics Land Systems Inc.).
Key specifications for 12590246: Mounting Hole Quantity: 12; Usage Design: COMBAT VEHICLE; Surface Treatment Document and Classification: MIL STD 171 MIL STD 1ST TREATMENT RESPONSE AND FED STD 595 FED STD 2ND TREATMENT RESPONSE; Design Type: METAL. 13 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 2540-01-628-4838 has DEMIL Code C. 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.