The Piston,linear Actuating Cylinder, cataloged under National Stock Number 1650-00-574-5168, 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 United Aeronautical Corporation Dba United Aeronautical Corp. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-574-5168 |
| Primary Part Number | 3551970 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | United Aeronautical Corporation Dba United Aeronautical Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 3551970 | United Aeronautical Corporation Dba United Aeronautical Corp (USA) |
| 3551970 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| 3551970 | Kitco Llc (USA) |
| Reference | Meaning |
|---|---|
| 3551970 | 5/9 Secondary reference Consolidated Aeronautics Corp |
| 3551970 | 3/2 Design control — primary reference U.S. Government activity |
| 3551970 | 5/9 Secondary reference The Boeing Company |
NSN 1650-00-574-5168 is a Piston,linear Actuating Cylinder, manufactured by United Aeronautical Corporation Dba United Aeronautical Corp, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-574-5168 has 3 manufacturer part numbers on file: 3551970 (United Aeronautical Corporation Dba United Aeronautical Corp), 3551970 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), 3551970 (Kitco Llc).
Key specifications for 3551970: Special Features: CRES; 15.281 IN. LG,1.250 IN. OD IN. 0 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 1650-00-574-5168 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.