The AS568-268 SIMRIZ Z7257 seal features an inner diameter of 8-1/2" and an outer diameter of 8-3/4", with a thickness of 1/8". This product, from Freudenberg-NOK, is engineered for exceptional durability and chemical resistance, making it ideal for various industrial applications. The SIMRIZ material ensures reliable performance under pressure and temperature variations, meeting industry standards for compatibility with a wide range of systems. Perfect for hydraulic and pneumatic applications, the Z7257 provides a secure and effective sealing solution.