The AS568-257 SIMRIZ SZ498 seal features a 5-7/8" inner diameter and a 6-1/8" outer diameter, with a thickness of 1/8". This product from Freudenberg-NOK is engineered for optimal sealing performance in various industrial applications. The SIMRIZ material is known for its exceptional resistance to harsh chemicals and high temperatures, making it ideal for use in hydraulic and pneumatic systems. This seal meets industry standards, ensuring compatibility and reliability in demanding environments. The SZ498 is designed to provide a secure and effective seal, enhancing the longevity of your equipment.