The Piston,hydraulic Brake, cataloged under National Stock Number 1630-00-993-9941, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. The manufacturer of record is Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-00-993-9941 |
| Primary Part Number | 92-20 |
| Item Name | Piston,hydraulic Brake |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Manufacturer | Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems |
| Status | ACTIVE |
| Piston Cup | NOT INCLUDED |
| Surface Condition | EXTERNALLY GROOVED |
| Groove Depth | 0.115 INCHES NOMINAL IN |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Construction Type | ONE-PIECE |
| Groove Width | 0.125 INCHES NOMINAL IN |
| Shoe Actuating End Type | FLAT BOTTOM |
| 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 |
|---|---|
| 092-020000 | Textron Aviation Inc (USA) |
| 92-20 PRIMARY | Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems (USA) |
| Reference | Meaning |
|---|---|
| 092-020000 | 5/9 Secondary reference Cessna Aircraft Company Dba Textron Aviation |
NSN 1630-00-993-9941 is a Piston,hydraulic Brake, manufactured by Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
NSN 1630-00-993-9941 has 2 manufacturer part numbers on file: 092-020000 (Textron Aviation Inc), 92-20 (Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems).
Key specifications for 92-20: Piston Cup: NOT INCLUDED; Surface Condition: EXTERNALLY GROOVED; Groove Depth: 0.115 INCHES NOMINAL IN; Outside Diameter: 1.750 INCHES NOMINAL IN. 8 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 1630-00-993-9941 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.