The Disc,brake, cataloged under National Stock Number 2530-00-138-1902, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2530-00-138-1902 |
| Item Name | Disc,brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 12720020 | 5/9 Secondary reference Caterpillar Paving Products Inc |
| 10001343 | 5/9 Secondary reference Caterpillar Paving Products Inc |
| 00-03967 | 5/9 Secondary reference Hb Performance Systems |
| 773273 | 3/9 Design control — primary reference Caterpillar Paving Products Inc |
NSN 2530-00-138-1902 is a Disc,brake, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2540-01-566-2685. Verify interchangeability with system specifications before substitution.
Key specifications for 2530-00-138-1902: Special Features: 2 LINING,4.000 IN. LG,1.500 IN. W,6.250 IN. W O/A,3.000 IN. H O/A IN; End Item Identification: RAYGO MODEL 400. 0 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.