Thread Table and Dimensions for the Dash Line System
Welcome to our page for the thread table and dimensions of the Dash line system! Here, you will find a complete overview of all important specifications to help you select the right lines and fittings.
The Dash line system is a standard for hydraulic and pneumatic connections, characterized by the following features:
- 37° Flare Angle: All Dash lines and fittings use a 37° angle for sealing, ensuring high reliability and leak-free connections.
- Versatile Applications: Dash systems are widely used in the automotive industry, aviation, hydraulics, and motorsports.
- Standardized Sizes: Dash sizes are globally standardized and refer to the inner diameter of the hose in fractions of an inch.
Our table includes the following information:
- Dash Size (AN): Designation of the line size.
- Thread Size: Outer and inner thread sizes.
- Hose Dimensions: Inner and outer diameter of the hose, matching the Dash size.
Use this page as your central reference for selecting Dash lines and fittings. If you need additional information, our support team is happy to assist you.
Dash Size |
Thread (Inch) |
Outer Thread (Inch/mm) |
Inner Thread (Inch/mm) |
Hose Inner Diameter (mm) |
|---|---|---|---|---|
| 2 | 5/16"-24 | 5/16" / 7.94 mm | 5/16" / 7.94 mm | 2.18 |
| 3 | 3/8"-24 | 3/8" / 9.52 mm | 3/8" / 9.52 mm | 3.17 |
| 4 | 7/16"-20 | 7/16" / 11.11 mm | 7/16" / 11.11 mm | 4.32 |
| 6 | 9/16"-18 | 9/16" / 14.28 mm | 9/16" / 14.28 mm | 6.35 |
| 8 | 3/4"-16 | 3/4" / 19.05 mm | 3/4" / 19.05 mm | 8.73 |
| 10 | 7/8"-14 | 7/8" / 22.22 mm | 7/8" / 22.22 mm | 11.18 |
| 12 | 1 1/16"-12 | 1 1/16" / 26.99 mm | 1 1/16" / 26.99 mm | 14.22 |
The exact dimensions and positions can be found in the technical drawing of the respective Dash line system.
Note: The values in inches and millimeters are converted. The conversion is based on the following formula:
- 1 Inch = 25.4 mm
Description of the dimensions in the drawing
- (1): Inner thread dimensions
- (2): Outer thread dimensions
- (3): Hose inner diameter (slightly stretched during installation)
- (4): Thread dimension for screw-in adapters
- (5): Wrench size for screw-in adapters