The AS568-382 SIMRIZ SZ501 O-Ring from Freudenberg-NOK features an inner diameter of 13 inches and an outer diameter of 13-3/8 inches, with a thickness of 3/16 inches. This O-ring is made from SIMRIZ, a material known for its excellent chemical resistance and high-temperature stability. It is designed to meet industry standards, making it suitable for various applications in the chemical and petrochemical industries. The precise dimensions ensure a reliable seal, minimizing the risk of leaks and enhancing the performance of your equipment.