The AS568-387 SIMRIZ SZ486 seal features an 18" inner diameter and an 18-3/8" outer diameter with a thickness of 3/16". This product from Freudenberg-NOK is engineered for high-performance sealing in various industrial applications. The SIMRIZ material is known for its exceptional resistance to chemicals and temperature variations, making it ideal for harsh environments. This seal complies with industry standards, ensuring compatibility with numerous systems. Its robust design guarantees a secure fit, enhancing the reliability and efficiency of hydraulic and pneumatic systems.