The AS568-371 SIMRIZ SZ481 seal features an inner diameter of 8-1/2" and an outer diameter of 8-7/8", with a thickness of 3/16". Manufactured by Freudenberg-NOK, this seal is made from high-performance SIMRIZ material, providing excellent resistance to chemicals and high temperatures. It is designed to meet industry standards, making it suitable for a variety of applications, including hydraulic and pneumatic systems. The SZ481 ensures a secure and effective seal, contributing to the reliability and efficiency of your machinery.