The Cylinder Assembly,actuating,line, cataloged under National Stock Number 1650-00-421-4546, 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 Northrop Grumman Systems Corporation. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 1650-00-421-4546 |
| Primary Part Number | 1128H40059-1 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| FSC Application Data | HYDRAULIC SYSTEMAIRCRAFT |
| Pressure Rating | 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Compressed Length | 7.812 INCHES NOMINAL IN |
| Seat Angle in Deg | 60.0 |
| Extended Length | 9.375 INCHES NOMINAL IN |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNF |
| Port Thread Class | 3B |
| Features Provided | CUSHIONED STROKE |
| Port Thread Quantity Per Inch | 20 |
| Body Material | STEEL |
| Port Thread Diameter | 0.562 INCHES NOMINAL IN |
| Port Style | GASKET SEAL |
| Bore Diameter | 0.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 1128H40059-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128H40059-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1650-00-421-4546 is a Cylinder Assembly,actuating,line, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-421-4546 has 1 manufacturer part number on file: 1128H40059-1 (Northrop Grumman Systems Corporation).
Key specifications for 1128H40059-1: Overall Height: 4.000 INCHES NOMINAL IN; FSC Application Data: HYDRAULIC SYSTEMAIRCRAFT; Pressure Rating: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Compressed Length: 7.812 INCHES NOMINAL IN. 14 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 1650-00-421-4546 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.