The AS568-343 SIMRIZ Z7257 is a high-performance sealing solution featuring a 3-3/4" inner diameter and 4-1/8" outer diameter with a thickness of 3/16". Manufactured by Freudenberg-NOK, this seal is designed for durability and reliability in various industrial applications. The SIMRIZ material offers excellent resistance to chemicals and temperature variations, making it suitable for demanding environments. This seal complies with industry standards, ensuring compatibility with a wide range of systems. Ideal for hydraulic and pneumatic applications, it provides a secure fit and long-lasting performance.