The Cylinder Assembly,actuating,line, cataloged under National Stock Number 3040-01-105-5739, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Dressta North America Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-105-5739 |
| Primary Part Number | 129279 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Dressta North America Ltd |
| Status | ACTIVE |
| First Piston Rod End Thread Class | UNABLE TO DECODE |
| Mounting Facility Diameter | 0.410 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Provisions | 2.750 INCHES NOMINAL IN |
| Compressed Length | 8.250 INCHES NOMINAL IN |
| Extended Length | 9.500 INCHES NOMINAL IN |
| Design Characteristics | SINGLE 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 |
| Body Outside Diameter | 2.531 INCHES NOMINAL IN |
| Mounting Provision Arrangement Style | TWO HOLE |
| First Piston Rod End Style | UNABLE TO DECODE |
| Port Thread Class | UNABLE TO DECODE |
| Port Thread Quantity Per Inch | UNABLE TO DECODE |
| Body Material | IRON CAST |
| 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 | UNTHREADED MOUNTING HOLES |
| Bore Diameter | 1.750 INCHES NOMINAL IN |
| Mounting Type and Location | FLANGE CENTER SECTION |
| 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 |
|---|---|
| 129279 PRIMARY | Dressta North America Ltd (USA) |
| Reference | Meaning |
|---|---|
| 129279 | 5/9 Secondary reference Komatsu America Corporation |
| AB-129279 | 5/9 Secondary reference Komatsu America Corporation |
NSN 3040-01-105-5739 is a Cylinder Assembly,actuating,line, manufactured by Dressta North America Ltd, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-105-5739 has 1 manufacturer part number on file: 129279 (Dressta North America Ltd).
Key specifications for 129279: First Piston Rod End Thread Class: UNABLE TO DECODE; Mounting Facility Diameter: 0.410 INCHES NOMINAL IN; Overall Height: 5.000 INCHES NOMINAL IN; Center to Center Distance Between Mounting Provisions: 2.750 INCHES NOMINAL IN. 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.