The Brake Drum, cataloged under National Stock Number 2530-01-238-1840, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2530-01-238-1840 |
| Item Name | Brake Drum |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Braking Surface Location | EXTERNAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 140199 | 5/9 Secondary reference Bendix Corp the Brake and Steering Div |
| 14012759 | 3/9 Design control — primary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
| 14012759 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 140409 | 5/9 Secondary reference Allied Automotive Allied Aftermarket Div |
NSN 2530-01-238-1840 is a Brake Drum, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2510-01-473-8251, 3805-01-543-6277. Verify interchangeability with system specifications before substitution.
Key specifications for 2530-01-238-1840: Braking Surface Location: EXTERNAL; End Item Identification: GENERAL MOTORS CORPORATION,CHEVROLET 3-1/4 TON TRUCK,1981 THRU 1983 SERIES; Material: STEEL CORROSION RESISTING OVERALL. 2 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.