The AS568-356 SIMRIZ Z7257 O-Ring by Freudenberg-NOK is engineered for high-performance sealing with dimensions of 5-3/8" inner diameter and 5-3/4" outer diameter. Constructed from advanced SIMRIZ material, it offers outstanding resistance to chemicals and high temperatures, making it suitable for a wide range of industrial applications. This O-ring meets rigorous industry standards, ensuring reliability and durability in critical systems. Its design effectively prevents leaks, providing peace of mind for engineers and maintenance professionals in demanding environments.