The AS568-323 SIMRIZ Z7257 O-ring features a 1-5/16" inner diameter and a 1-11/16" outer diameter with a thickness of 3/16". Manufactured by Freudenberg-NOK, this O-ring is crafted from high-quality materials that provide excellent resistance to wear, making it ideal for various sealing applications. The Z7257 model is designed to meet stringent industry standards, ensuring compatibility with a wide range of systems. Its robust construction allows it to perform effectively in both hydraulic and pneumatic environments, providing a reliable seal that prevents leaks and maintains system efficiency.