The Piston,linear Actuating Cylinder, cataloged under National Stock Number 1650-00-657-5128, 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 Kitco Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-00-657-5128 |
| Primary Part Number | 4545222 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Kitco Llc |
| Status | ACTIVE |
| Outside Diameter | 1.059 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 4545222 | Kitco Llc (USA) |
| 4545222 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| Reference | Meaning |
|---|---|
| 4545222 | 5/9 Secondary reference Space Age Engineering |
| 4545222 | 5/9 Secondary reference The Boeing Company |
| 4545222 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-00-657-5128 is a Piston,linear Actuating Cylinder, manufactured by Kitco Llc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-657-5128 has 2 manufacturer part numbers on file: 4545222 (Kitco Llc), 4545222 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company).
Key specifications for 4545222: Outside Diameter: 1.059 INCHES NOMINAL IN; Overall Length: 5.094 INCHES NOMINAL IN; Special Features: GROOVED IN END;0.300 IN. W OF GROOVE;0.818 IN. DIA OF THE GROOVE,0.496 IN. DIA OF THE ROD IN; Material: STEEL. 2 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 1650-00-657-5128 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.