The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-00-375-1342, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Dana Off Highway Products, Llc. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-375-1342 |
| Primary Part Number | 643432 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Dana Off Highway Products, Llc |
| Status | ACTIVE |
| Compressed Length | 28.500 INCHES NOMINAL IN |
| Extended Length | 38.500 INCHES NOMINAL IN |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNABLE TO DECODE |
| Body Outside Diameter | 5.000 INCHES NOMINAL IN |
| First Piston Rod End Style | UNABLE TO DECODE |
| First End Thickness at Mounting Holes | UNABLE TO DECODE |
| Body Material | STEEL |
| Port Nominal Pipe Thread Size | UNABLE TO DECODE |
| Port Style | UNABLE TO DECODE |
| First End Hole Diameter | UNABLE TO DECODE |
| Integral Valve Operation Method | HYDRAULIC |
| Bore Diameter | 4.500 INCHES NOMINAL IN |
| Mounting Type and Location | FORK CYLINDER HEAD END |
| 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 |
|---|---|
| 643432 PRIMARY | Dana Off Highway Products, Llc (USA) |
| Reference | Meaning |
|---|---|
| 643432 | 5/9 Secondary reference Clark Equipment Co |
| 7-643432 | 5/9 Secondary reference Lift Parts Mfg Co Inc Div of Echlin Mfg Co the |
| 7-643432 | C/1 Advisory reference — outside the item-of-supply concept Tvh Parts Co. |
NSN 3040-00-375-1342 is a Cylinder Assembly,actuating,line, manufactured by Dana Off Highway Products, Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-375-1342 has 1 manufacturer part number on file: 643432 (Dana Off Highway Products, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4920-01-043-2542. Verify interchangeability with system specifications before substitution.
Key specifications for 643432: Overall Height: 5.500 INCHES NOMINAL IN; Compressed Length: 28.500 INCHES NOMINAL IN; Extended Length: 38.500 INCHES NOMINAL IN; Design Characteristics: DOUBLE ACTING SINGLE CYLINDER. 15 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.