An Internal Seal Ring, also known as an internal O-ring or internal gasket, is used to prevent leakage or ingress of fluids within the transmission drive piston. It features a circular loop made from plastic material that is compressed within the groove, forming a tight sealing connection.

Attributes:
• Maintain their sealing integrity even when exposed to fluids
• Allows smoother movement and reduced wear resistance

Applications:
An Internal Seal Ring is used to create a reliable seal between two mating components, ensuring a leak-free connection or junction.