The AS568-240 SIMRIZ SZ485 seal features a 3-3/4" inner diameter and a 4" outer diameter, with a thickness of 1/8". This high-quality seal from Freudenberg-NOK is engineered for durability and reliability in various industrial applications. The SIMRIZ material is known for its excellent resistance to chemicals and high temperatures, making it ideal for harsh environments. This product complies with industry standards, ensuring compatibility with a wide range of systems. The AS568-240 seal is perfect for hydraulic and pneumatic applications, providing a secure and long-lasting sealing solution.