The Piston Assembly,hydraulic Brake,, cataloged under National Stock Number 1630-01-461-2961, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1630-01-461-2961 |
| Item Name | Piston Assembly,hydraulic Brake, |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Status | ACTIVE |
| 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 |
|---|---|
| 45616 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1630-01-461-2961 is a Piston Assembly,hydraulic Brake,, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3120-01-521-4253, 5999-01-689-4220. Verify interchangeability with system specifications before substitution.
Key specifications for 1630-01-461-2961: End Item Identification: C17A ACFT. 0 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.