The Piston,linear Actuating Cylinder, cataloged under National Stock Number 1650-00-573-6914, 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. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-573-6914 |
| Primary Part Number | 4556540 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Kitco Llc |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 4556540 | Kitco Llc (USA) |
| 4556540 | Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc (USA) |
| 4556540 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| Reference | Meaning |
|---|---|
| 4556540 | 5/9 Secondary reference The Boeing Company |
| 4556540 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-00-573-6914 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 1650-00-573-6914 has 3 manufacturer part numbers on file: 4556540 (Kitco Llc), 4556540 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc), 4556540 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company).
Key specifications for 4556540: Special Features: USED ON AIRCRAFT HYDRAULIC SYSTEM. 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 1650-00-573-6914 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.