The Brake Drum, cataloged under National Stock Number 2530-01-183-6849, 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 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-183-6849 |
| Item Name | Brake Drum |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Adjustment Hole | NOT INCLUDED |
| Balancing Pad | NOT INCLUDED |
| Braking Surface Width | 6.625 INCHES NOMINAL IN |
| Inspection Hole | NOT INCLUDED |
| Overall Outside Diameter | 14.125 INCHES NOMINAL IN |
| Braking Surface Location | INTERNAL |
| Oil Drain Hole | NOT INCLUDED |
| Center Hole Diameter | 6.250 INCHES NOMINAL IN |
| Braking Surface Diameter | 12.240 INCHES MINIMUM AND 12.260 INCHES MAXIMUM IN |
| Material | IRON CAST OVERALL |
| Cooling Fin | NOT INCLUDED |
| 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 |
|---|---|
| M12WA121-3 | 3/9 Design control — primary reference Dana Corp Spicer Trailer Axle Plant |
| 3061400-003 | 5/9 Secondary reference Standard Forge and Axle Co Inc |
NSN 2530-01-183-6849 is a Brake Drum, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
Key specifications for 2530-01-183-6849: Adjustment Hole: NOT INCLUDED; Balancing Pad: NOT INCLUDED; Braking Surface Width: 6.625 INCHES NOMINAL IN; Inspection Hole: NOT INCLUDED. 11 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.