The Droop Piston, cataloged under National Stock Number 1650-01-211-8474, 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 Parker Hannifin Corp Aerospace Group Aerospace Hydraulics Div. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Droop Piston |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | Parker Hannifin Corp Aerospace Group Aerospace Hydraulics Div (CAGE 3H892) |
| Parameter | Value |
|---|---|
| NSN | 1650-01-211-8474 |
| Primary Part Number | 2771679-102 |
| Item Name | Droop Piston |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Parker Hannifin Corp Aerospace Group Aerospace Hydraulics Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 2771679-102 PRIMARY | Parker Hannifin Corp Aerospace Group Aerospace Hydraulics Div (USA) |
| Reference | Meaning |
|---|---|
| 2771679-102 | 5/9 Secondary reference U.S. Government activity |
NSN 1650-01-211-8474 is a Droop Piston, manufactured by Parker Hannifin Corp Aerospace Group Aerospace Hydraulics Div, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-211-8474 has 1 manufacturer part number on file: 2771679-102 (Parker Hannifin Corp Aerospace Group Aerospace Hydraulics Div).
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 1650-01-211-8474 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.