The Modification Kit,vehicular Equip, cataloged under National Stock Number 2590-01-655-0686, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2590-01-655-0686 |
| Primary Part Number | 57K4504 |
| Item Name | Modification Kit,vehicular Equip |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 57K4504 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 2590-01-655-0686 is a Modification Kit,vehicular Equip, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-655-0686 has 1 manufacturer part number on file: 57K4504 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 57K4504: Part Name Assigned by Controlling Agency: BLOCK, IDLER SUPPORT MODIFICATION KIT; End Item Identification: INFANTRY FIGHTING VEHICLE(M2,M2A1,M2A2), CAVELRY FIGHTING VEHICLE(M2,M3A1,M3A2). 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.