The Brake Drum, cataloged under National Stock Number 2530-01-067-5134, 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 Kalmar AC Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-067-5134 |
| Primary Part Number | 74812198 |
| Item Name | Brake Drum |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Adjustment Hole | NOT INCLUDED |
| Balancing Pad | NOT INCLUDED |
| Mounting Hole Spacing | EQUALLY SPACED ON 6.678 IN. BOLT CIRCLE DIAMETER IN |
| Braking Surface Width | 1.750 INCHES NOMINAL IN |
| Inspection Hole | NOT INCLUDED |
| Mounting Hole Diameter | 0.392 INCHES NOMINAL IN |
| Overall Outside Diameter | 7.630 INCHES NOMINAL IN |
| Braking Surface Location | INTERNAL |
| Oil Drain Hole | NOT INCLUDED |
| Center Hole Diameter | 5.008 INCHES NOMINAL IN |
| Braking Surface Diameter | 7.256 INCHES NOMINAL IN |
| Material | STEEL 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 |
| Part Number | Manufacturer |
|---|---|
| 74812198 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 4812198-2 | 5/9 Secondary reference Kalmar AC Inc |
NSN 2530-01-067-5134 is a Brake Drum, manufactured by Kalmar AC Inc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-067-5134 has 1 manufacturer part number on file: 74812198 (Kalmar AC Inc).
Key specifications for 74812198: Mounting Hole Quantity: 4; Adjustment Hole: NOT INCLUDED; Balancing Pad: NOT INCLUDED; Mounting Hole Spacing: EQUALLY SPACED ON 6.678 IN. BOLT CIRCLE DIAMETER 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.