The Brake Drum, cataloged under National Stock Number 2530-00-075-5857, 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 Metadure Parts & Sales, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2530-00-075-5857 |
| Primary Part Number | C6268 |
| Item Name | Brake Drum |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Metadure Parts & Sales, Inc. |
| Status | ACTIVE |
| Mounting Hole Quantity | 5 |
| Adjustment Hole | NOT INCLUDED |
| Balancing Pad | NOT INCLUDED |
| Mounting Hole Spacing | EQUALLY SPACED ON 4.500 IN.BOLT CIRCLE IN |
| Braking Surface Width | 2.400 INCHES NOMINAL IN |
| Inspection Hole | NOT INCLUDED |
| Mounting Hole Diameter | 0.580 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN |
| Overall Outside Diameter | 7.360 INCHES NOMINAL IN |
| Braking Surface Location | EXTERNAL OR INTERNAL |
| Oil Drain Hole | NOT INCLUDED |
| Center Hole Diameter | 3.375 INCHES MINIMUM AND 3.380 INCHES MAXIMUM IN |
| Braking Surface Diameter | 7.050 INCHES NOMINAL IN |
| Material | IRON MALLEABLE OR IRON 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 |
|---|---|
| C6268 PRIMARY | Metadure Parts & Sales, Inc. (USA) |
| Reference | Meaning |
|---|---|
| C6268 | 5/9 Secondary reference U.S. Government activity |
NSN 2530-00-075-5857 is a Brake Drum, manufactured by Metadure Parts & Sales, Inc., classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-075-5857 has 1 manufacturer part number on file: C6268 (Metadure Parts & Sales, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5306-00-424-0591. Verify interchangeability with system specifications before substitution.
Key specifications for C6268: Mounting Hole Quantity: 5; Adjustment Hole: NOT INCLUDED; Balancing Pad: NOT INCLUDED; Mounting Hole Spacing: EQUALLY SPACED ON 4.500 IN.BOLT CIRCLE 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.