The Piston,hydraulic Brake, cataloged under National Stock Number 1630-00-992-0369, 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 12 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-00-992-0369 |
| Primary Part Number | 9533123 |
| Item Name | Piston,hydraulic Brake |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Manufacturer | Meggitt Aircraft Braking Systems Corporation |
| Status | ACTIVE |
| FSC Application Data | BRAKE WHEEL,ACFT C123 |
| Length | 1.017 INCHES NOMINAL IN |
| Criticality Code Justification | FEATG |
| Piston Cup | NOT INCLUDED |
| Shape | SPHERICAL |
| Surface Condition | EXTERNALLY GROOVED |
| Groove Depth | 0.120 INCHES NOMINAL IN |
| Outside Diameter | 1.372 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Construction Type | ONE-PIECE |
| Groove Width | 0.208 INCHES NOMINAL IN |
| Shoe Actuating End Type | SOCKET |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 9533123 PRIMARY | Meggitt Aircraft Braking Systems Corporation (USA) |
| 8634252-01 | Hiiesalu Alan J Dba Thoroughbred Precision (USA) |
| 8634252-01 | Alpine Industries, Llc (USA) |
| 8634252-01 | Es3 Prime Logistics Group Inc Dba Es3 Plg (USA) |
| 8634252-01 | National Machine Company Dba Nmg Aerospace (USA) |
| 8634252-01 | Systematic Machine Corp (USA) |
| Reference | Meaning |
|---|---|
| 8634252-01 | 5/9 Secondary reference American Metals & Machining |
| 1630PL0828719 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 8634252-01 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 1630-00-992-0369 is a Piston,hydraulic Brake, manufactured by Meggitt Aircraft Braking Systems Corporation, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
NSN 1630-00-992-0369 has 6 manufacturer part numbers on file: 9533123 (Meggitt Aircraft Braking Systems Corporation), 8634252-01 (Hiiesalu Alan J Dba Thoroughbred Precision), 8634252-01 (Alpine Industries, Llc), 8634252-01 (Es3 Prime Logistics Group Inc Dba Es3 Plg), 8634252-01 (National Machine Company Dba Nmg Aerospace) and 1 more.
Key specifications for 9533123: FSC Application Data: BRAKE WHEEL,ACFT C123; Length: 1.017 INCHES NOMINAL IN; Criticality Code Justification: FEATG; Piston Cup: NOT INCLUDED. 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.