The Brake,single Disk, cataloged under National Stock Number 1630-00-489-2812, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. The manufacturer of record is Meggitt Aircraft Braking Systems Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-00-489-2812 |
| Primary Part Number | 9541519 |
| Item Name | Brake,single Disk |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Manufacturer | Meggitt Aircraft Braking Systems Corporation |
| Status | ACTIVE |
| Mounting Hole Quantity | 12 |
| Lining Friction Surface Area | 20.520 SQUARE INCHES NOMINAL |
| Hydraulic Cylinder Quantity | 3 |
| Overall Diameter | 13.250 INCHES NOMINAL IN |
| Mounting Method | ANCHOR PLATE FLANGE |
| Mounting Hole Diameter | 0.328 INCHES NOMINAL IN |
| Lining Contact Surface Width | 2.088 INCHES NOMINAL IN |
| Bolt Circle Diameter | 4.750 INCHES NOMINAL IN |
| Hydraulic Cylinder Diameter | 2.125 INCHES NOMINAL IN |
| Installation Location | LEFT HAND SIDE OR RIGHT HAND SIDE |
| Wheel Size for Which Designed | 11.00 BY 12 IN. WHEEL IN |
| Braking Area Outside Diameter | 12.625 INCHES NOMINAL IN |
| Rotating Disk Thickness | 0.400 INCHES NOMINAL IN |
| Operation Method | HYDRAULIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9541519 PRIMARY | Meggitt Aircraft Braking Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 9541519 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
| 9541519 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems |
NSN 1630-00-489-2812 is a Brake,single Disk, manufactured by Meggitt Aircraft Braking Systems Corporation, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
NSN 1630-00-489-2812 has 1 manufacturer part number on file: 9541519 (Meggitt Aircraft Braking Systems Corporation).
Key specifications for 9541519: Mounting Hole Quantity: 12; Lining Friction Surface Area: 20.520 SQUARE INCHES NOMINAL; Hydraulic Cylinder Quantity: 3; Overall Diameter: 13.250 INCHES NOMINAL 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.
NSN 1630-00-489-2812 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.