The Freudenberg-NOK SIMRIZ SZ485 O-Ring, meeting AS568-256 standards, features a size of 5-3/4" ID, 6" OD, and a thickness of 1/8". Made from high-performance SIMRIZ material, this O-Ring offers exceptional resistance to chemicals and high temperatures, making it ideal for various industrial applications. Its precise dimensions ensure compatibility with standard fittings, providing a secure seal that prevents leaks in hydraulic and pneumatic systems. This O-Ring is a reliable choice for enhancing system performance.