The Freudenberg-NOK AS568-452 SIMRIZ SZ485 is engineered for optimal sealing performance with an 11 1/2" inner diameter and a 12" outer diameter, featuring a thickness of 1/4". This seal is made from high-quality SIMRIZ material, known for its excellent resistance to chemicals and extreme temperatures. It meets AS568 standards, ensuring compatibility with various industrial applications. The design minimizes leakage and enhances the efficiency of hydraulic and pneumatic systems, making it a reliable choice for demanding environments.