The AS568-254 SIMRIZ SZ481 seal features a 5-1/2" inner diameter and a 5-3/4" outer diameter, with a thickness of 1/8". This product from Freudenberg-NOK is designed for optimal sealing performance in various industrial applications. The SIMRIZ material provides excellent resistance to chemicals and high temperatures, making it suitable for hydraulic and pneumatic systems. This seal complies with industry standards, ensuring compatibility and reliability. The SZ481 is engineered to deliver a secure fit, enhancing the performance and lifespan of your machinery.