The Chain Assembly,tire, cataloged under National Stock Number 2540-00-693-1018, 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 14 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. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2540-00-693-1018 |
| Primary Part Number | 518317 |
| Item Name | Chain Assembly,tire |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Tire Size Accommodated | 7.10-15 |
| Outer Side Chain Length | 73.100 INCHES NOMINAL IN |
| Design Type | TWO SIDE |
| Cross Chain Casehardening Indicator | NOT CASEHARDENED |
| Cross Chain Link Quantity | 8 |
| Cross Chain Type | REGULAR TWIST |
| Side Chain Wire Size | 0.192 INCHES NOMINAL IN |
| Cross Chain Length | 11.370 INCHES NOMINAL IN |
| Cross Chain Link Wire Size | 0.225 INCHES NOMINAL IN |
| Outer Side Chain Link Quantity | 55 |
| Cross Chain Quantity | 13 |
| Material | STEEL SIDE CHAIN |
| Material | STEEL CROSS CHAIN |
| Cross Chain Spacing | EVERY 4 LINKS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 518317 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 2540-00-693-1018 is a Chain Assembly,tire, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-00-693-1018 has 1 manufacturer part number on file: 518317 (U S Army Tank Automotive Command Amsta-Im-Mm).
3 possible matches (shared part number, not a government interchangeability claim): 5330-00-734-8540, 5995-01-440-0617, 6665-01-514-6891. Verify interchangeability with system specifications before substitution.
Key specifications for 518317: Tire Size Accommodated: 7.10-15; Outer Side Chain Length: 73.100 INCHES NOMINAL IN; Design Type: TWO SIDE; Cross Chain Casehardening Indicator: NOT CASEHARDENED. 14 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.
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.