The AS568-339 SIMRIZ SZ485 is a robust sealing solution with a 3-1/4" inner diameter and a 3-5/8" outer diameter, featuring a thickness of 3/16". Manufactured by Freudenberg-NOK, this seal is engineered for high performance, providing excellent resistance to chemicals and extreme temperatures. The SZ485 complies with industry standards, ensuring compatibility with various systems. Its durable design makes it suitable for both hydraulic and pneumatic applications, delivering a secure and long-lasting seal that enhances operational efficiency.