The Piston,linear Actuating Cylinder, cataloged under National Stock Number 1650-01-129-8389, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-129-8389 |
| Primary Part Number | 65652-03122-105 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Outside Diameter | 1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.500 INCHES IN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 65652-03122-105 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 1650-01-129-8389 is a Piston,linear Actuating Cylinder, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-129-8389 has 1 manufacturer part number on file: 65652-03122-105 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 65652-03122-105: Outside Diameter: 1.242 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN; Overall Length: 9.988 INCHES NOMINAL IN; Nominal Thread Size: 0.500 INCHES IN; Special Features: QQ-A-225/9 ALLOY 7075 TEMP T73; ANODIZE FINISH; 20 THREADS PER IN. UNF-3A THD AT END; COGNIZANT SERVICE:NAVY A. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1650-01-129-8389 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.