The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-284-8258, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 23 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-284-8258 |
| Primary Part Number | X90435-49 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| First Piston Rod End Thread Class | UNABLE TO DECODE |
| Mounting Facility Diameter | 1.000 INCHES NOMINAL IN |
| Pressure Rating | 750.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Compressed Length | 10.625 INCHES NOMINAL IN |
| Extended Length | 16.625 INCHES NOMINAL IN |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNABLE TO DECODE |
| First Piston Rod End Thread Quantity Per Inch | UNABLE TO DECODE |
| First End External Thread Length | UNABLE TO DECODE |
| Mounting Facility Length | 4.000 INCHES NOMINAL IN |
| First Piston Rod End Style | UNABLE TO DECODE |
| Port Thread Class | UNABLE TO DECODE |
| Port Thread Quantity Per Inch | UNABLE TO DECODE |
| Body Material | STEEL |
| Port Thread Diameter | UNABLE TO DECODE |
| Port Style | UNABLE TO DECODE |
| First Piston Rod End Thread Series Designator | UNABLE TO DECODE |
| Mounting Provision for Which Designed | PIN(S) |
| Integral Valve Operation Method | HYDRAULIC |
| Bore Diameter | 1.500 INCHES NOMINAL IN |
| Mounting Type and Location | TRUNNION CYLINDER HEAD END |
| First Piston Rod End Thread Diameter | UNABLE TO DECODE |
| First End Outside Diameter | UNABLE TO DECODE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| X90435-49 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| X90435-49 | 3/9 Design control — primary reference Hunt Valve Company, Inc. |
| X90435-49-1.5X6 | 5/9 Secondary reference Hunt Valve Company, Inc. |
| H68803 | 5/9 Secondary reference Hunt Valve Company, Inc. |
NSN 3040-01-284-8258 is a Cylinder Assembly,actuating,line, manufactured by Hunt Valve Company, Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-284-8258 has 1 manufacturer part number on file: X90435-49 (Hunt Valve Company, Inc.).
Key specifications for X90435-49: First Piston Rod End Thread Class: UNABLE TO DECODE; Mounting Facility Diameter: 1.000 INCHES NOMINAL IN; Overall Height: 2.000 INCHES NOMINAL IN; Pressure Rating: 750.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS. 23 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.
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.