The Lining,friction, cataloged under National Stock Number 2530-00-522-4183, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-522-4183 |
| Primary Part Number | 8720517 |
| Item Name | Lining,friction |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Strengthening Feature | INTERWOVEN WIRE |
| Hole Arrangement Style | DOUBLE EVEN |
| Arc Length | 14.900 INCHES NOMINAL IN |
| Mounting Hole Diameter | 0.531 INCHES NOMINAL IN |
| Lining Style | SEGMENT PLAIN |
| Features Provided | RIGID FRICTION LINING |
| Surface Condition and Location | BOTH SIDES GROUND |
| Application Type | DRY |
| Attachment Method | RIVETED |
| Width | 3.000 INCHES NOMINAL IN |
| Minor Radius | 7.120 INCHES NOMINAL IN |
| Fabrication Method | WOVEN |
| Thickness | 0.375 INCHES NOMINAL IN |
| Hole Type and Quantity | 14 COUNTERBORED |
| 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 |
|---|---|
| 2240A4863 | Meritor Heavy Vehicle Systems, Llc (USA) |
| 8720517 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2240P1758 | 5/9 Secondary reference Meritor Heavy Vehicle Systems, Llc |
| 145M | 5/9 Secondary reference Seaman-Parsons Corp |
NSN 2530-00-522-4183 is a Lining,friction, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-522-4183 has 2 manufacturer part numbers on file: 2240A4863 (Meritor Heavy Vehicle Systems, Llc), 8720517 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8720517: Strengthening Feature: INTERWOVEN WIRE; Hole Arrangement Style: DOUBLE EVEN; Arc Length: 14.900 INCHES NOMINAL IN; Mounting Hole Diameter: 0.531 INCHES NOMINAL IN. 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.