The AS568-347 SIMRIZ Z7257 is a high-quality sealing solution featuring a 4-1/4" inner diameter and a 4-5/8" outer diameter with a 3/16" cross-section. Manufactured by Freudenberg-NOK, this seal is designed for optimal performance in various industrial applications. The SIMRIZ material provides excellent resistance to chemicals and high temperatures, ensuring durability and reliability. This product complies with industry standards, making it suitable for hydraulic and pneumatic systems, where a secure seal is essential for preventing leaks.