The AS568-359 SIMRIZ Z7257 is a reliable sealing solution featuring a 5-3/4" inner diameter and a 6-1/8" outer diameter with a thickness of 3/16". This product from Freudenberg-NOK is made from high-performance SIMRIZ material, known for its exceptional resistance to chemicals and temperature variations. It adheres to industry standards, ensuring compatibility with a variety of applications, particularly in hydraulic and pneumatic systems. The Z7257 seal provides a secure fit and long-lasting performance, enhancing the efficiency of your equipment.