The AS568-236 SIMRIZ Z7257 O-ring features a 3-1/4" inner diameter and a 3-1/2" outer diameter with a thickness of 1/8", making it an ideal sealing solution for various applications. Manufactured by Freudenberg-NOK, this O-ring is made from high-quality materials that provide excellent resistance to chemicals and high temperatures. The SIMRIZ Z7257 is designed to meet industry standards, ensuring compatibility with a wide range of systems. Perfect for hydraulic and pneumatic applications, this O-ring guarantees a reliable seal to prevent leaks and maintain system performance.