The Brake Drum, cataloged under National Stock Number 2530-01-459-6725, 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 Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-459-6725 |
| Primary Part Number | 23049277 |
| Item Name | Brake Drum |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Mounting Hole Quantity | 8 |
| Braking Surface Width | 100.84 MILLIMETERS NOMINAL MM |
| Overall Outside Diameter | 321.34 MILLIMETERS NOMINAL MM |
| Braking Surface Location | INTERNAL |
| Braking Surface Diameter | 163.64 MILLIMETERS NOMINAL MM |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 23049277 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 543327001124 | Gd European Land Systems-Steyr Gmbh (AUT) |
NSN 2530-01-459-6725 is a Brake Drum, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-459-6725 has 2 manufacturer part numbers on file: 23049277 (Allison Transmission Inc Dba Allison Transmission, Inc), 543327001124 (Gd European Land Systems-Steyr Gmbh).
Key specifications for 23049277: Mounting Hole Quantity: 8; Braking Surface Width: 100.84 MILLIMETERS NOMINAL MM; Overall Width: 108.00 MILLIMETERS NOMINAL MM; Overall Outside Diameter: 321.34 MILLIMETERS NOMINAL MM. 6 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.