Diana Piston Seal 30309800 – Model 3, 20, 21 and 240 Classic


Diana Piston Seal 30309800
The Diana piston seal 30309800 is an original replacement part for several Diana airguns. The seal provides the necessary seal between the piston and cylinder and is intended to replace a worn or damaged piston seal.
This piston seal is used in several older Diana models as well as the Diana 240 Classic T05. The original Diana part number is 30309800, making it easy to compare the part with the spare parts list or exploded diagram of the airgun.
Compatible with several Diana models
The Diana 30309800 is compatible with the Diana Model 3 / LP3, Model 20, Panther 21 and 240 Classic T05. For older airguns, always check the model and, where possible, the part number in the exploded diagram before ordering.
Key features and specifications
- Brand: Diana
- Type: piston seal
- Original part number: 30309800
- Compatible with Diana Model 3 / LP3, Model 20, Panther 21 and 240 Classic T05
- Diameter: approximately 25.90 mm
- Thickness: approximately 5.25 mm
- Original Diana replacement part
A worn piston seal can affect the air seal and operation of a spring-powered airgun. The Diana 30309800 provides a suitable original replacement for compatible Diana models.








