The AS568-253 SIMRIZ SZ501 seal is engineered for high-performance applications, featuring a 5-3/8" inner diameter and a 5-5/8" outer diameter with a thickness of 1/8". Manufactured by Freudenberg-NOK, this seal is made from durable SIMRIZ material, providing excellent resistance to chemicals and high temperatures. It complies with industry standards, ensuring compatibility with various systems, especially in hydraulic and pneumatic applications. The SZ501 offers a secure and effective seal, contributing to the reliability and efficiency of your machinery.