The Freudenberg-NOK AS568-388 SIMRIZ SZ485 O-Ring is designed with a 19" inner diameter, 19-3/8" outer diameter, and a 3/16" cross-section. This O-ring is made from high-performance SIMRIZ material, providing excellent resistance to a variety of chemicals and high temperatures. It meets ISO standards for reliability and is ideal for use in both static and dynamic applications, including hydraulic and pneumatic systems. The precise dimensions ensure compatibility with AS568 specifications, making it a versatile sealing solution for industrial applications.