The Freudenberg-NOK AS568-440 SIMRIZ SZ481 is designed with a 6 3/4" inner diameter and a 7 1/4" outer diameter, featuring a thickness of 1/4". This seal is made from advanced SIMRIZ material, ensuring exceptional resistance to chemicals and high temperatures, making it ideal for various industrial applications. It complies with AS568 standards, ensuring compatibility with a wide range of systems. The design is optimized for effective sealing in hydraulic and pneumatic systems, providing reliable performance and longevity.