The Brake,single Disk, cataloged under National Stock Number 2530-00-451-2746, 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 12 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 2530-00-451-2746 |
| Item Name | Brake,single Disk |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Lining Friction Surface Area | 25.336 SQUARE INCHES NOMINAL |
| Hydraulic Cylinder Quantity | 2 |
| Overall Diameter | 18.000 INCHES NOMINAL IN |
| Mounting Method | ANCHOR PLATE FLANGE |
| Mounting Hole Diameter | 0.535 INCHES NOMINAL IN |
| Lining Contact Surface Width | 2.840 INCHES NOMINAL IN |
| Bolt Circle Diameter | 7.000 INCHES NOMINAL IN |
| Hydraulic Cylinder Diameter | 2.812 INCHES NOMINAL IN |
| Installation Location | RIGHT HAND FRONT |
| Braking Area Outside Diameter | 14.000 INCHES NOMINAL IN |
| Operation Method | HYDRAULIC |
| 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 |
|---|---|
| 9440942 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
| 39640059 | 3/9 Design control — primary reference Goodyear Aerospace Corp Industrial Brake Opns |
| WB390 | 5/9 Secondary reference Walter Motor Truck Co |
| 7000003 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems |
| PD1298-1 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
| 7000003 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
| 9640059 | 5/9 Secondary reference Goodyear Aerospace Corp Industrial Brake Opns |
NSN 2530-00-451-2746 is a Brake,single Disk, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 4320-01-018-6086, 6250-01-083-4217, 5930-01-281-6414. Verify interchangeability with system specifications before substitution.
Key specifications for 2530-00-451-2746: Mounting Hole Quantity: 3; Lining Friction Surface Area: 25.336 SQUARE INCHES NOMINAL; Hydraulic Cylinder Quantity: 2; Overall Diameter: 18.000 INCHES NOMINAL IN. 12 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.