The Freudenberg-NOK AS568-445 SIMRIZ SZ486 is engineered for high-performance sealing with an 8" inner diameter and 8 1/2" outer diameter, featuring a thickness of 1/4". Constructed from durable SIMRIZ material, this seal offers excellent resistance to chemicals and temperature fluctuations, making it suitable for various industrial applications. It complies with industry standards, ensuring compatibility with multiple systems. Ideal for hydraulic and pneumatic uses, this seal guarantees a secure fit and effective sealing capabilities.