The AS568-211 SIMRIZ Z7257 seal features a 13/16" inner diameter and a 1-1/16" outer diameter, with a thickness of 1/8". This product from Freudenberg-NOK is engineered for high performance in various sealing applications. The SIMRIZ material is known for its exceptional resistance to oils, chemicals, and temperature extremes, making it ideal for use in hydraulic and pneumatic systems. This seal complies with industry standards, ensuring compatibility and reliability in demanding environments. The Z7257 is designed to provide a secure and effective seal, enhancing the longevity of your equipment.