The Piston Assembly,brake, cataloged under National Stock Number 1630-01-305-8712, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1630-01-305-8712 |
| Item Name | Piston Assembly,brake |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Status | ACTIVE |
| FSC Application Data | ACFT BRAKE SYSTEM |
| General Characteristics Item Description | CONSIST OF: 1 PISTON; 1 LINING; NON-ASBESTOS LINING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 331-6-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1630-01-305-8712 is a Piston Assembly,brake, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-347-7526, 5340-01-556-1192. Verify interchangeability with system specifications before substitution.
Key specifications for 1630-01-305-8712: FSC Application Data: ACFT BRAKE SYSTEM; General Characteristics Item Description: CONSIST OF: 1 PISTON; 1 LINING; NON-ASBESTOS LINING; End Item Identification: H53 HELICOPTER. 2 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 1630-01-305-8712 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.