The AS568-155 SIMRIZ SZ481 is a reliable sealing solution featuring a 4" inner diameter and 4-3/16" outer diameter with a thickness of 3/32". Manufactured by Freudenberg-NOK, this seal is designed for high performance in various industrial applications. The SIMRIZ material offers excellent resistance to chemicals and high temperatures, making it suitable for demanding environments. This product meets industry standards, ensuring compatibility with a wide range of systems. Ideal for use in hydraulic and pneumatic applications, the SZ481 provides a secure fit and long-lasting performance.