The Piston,hydraulic Brake,master Cy, cataloged under National Stock Number 1630-01-435-3474, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. The manufacturer of record is Goodrich Corporation. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Piston,hydraulic Brake,master Cy |
| FSC / FSG | 1630 — Aircraft Wheel and Brake Systems (FSG 16) |
| Manufacturers | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Goodrich Corporation (CAGE 6K4C8) |
| Parameter | Value |
|---|---|
| NSN | 1630-01-435-3474 |
| Primary Part Number | 2579036 |
| Item Name | Piston,hydraulic Brake,master Cy |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 2579036 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 2579036 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2579036 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
| 2579036 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
NSN 1630-01-435-3474 is a Piston,hydraulic Brake,master Cy, manufactured by Goodrich Corporation, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
NSN 1630-01-435-3474 has 2 manufacturer part numbers on file: 2579036 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 2579036 (Goodrich Corporation).
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 1630-01-435-3474 has DEMIL Code Q. 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.