The Servocylinder, cataloged under National Stock Number 1650-01-384-8665, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-384-8665 |
| Item Name | Servocylinder |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Status | ACTIVE |
| Compressed Length | 16.650 INCHES NOMINAL IN |
| Extended Length | 20.210 INCHES NOMINAL IN |
| Design Characteristics | DOUBLE ACTING TANDEM CYLINDER |
| Integral Valve Operation Method | HYDRAULIC |
| 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 |
| Reference | Meaning |
|---|---|
| 1273-12 | 3/2 Design control — primary reference U.S. Government activity |
| 123SCH144-12 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 123SCH144-12 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 1650-01-384-8665 is a Servocylinder, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-433-2650. Verify interchangeability with system specifications before substitution.
Key specifications for 1650-01-384-8665: Compressed Length: 16.650 INCHES NOMINAL IN; Extended Length: 20.210 INCHES NOMINAL IN; Design Characteristics: DOUBLE ACTING TANDEM CYLINDER; End Item Identification: ACFT MODEL E-2C. 4 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 1650-01-384-8665 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.