The AS568-455 13" ID x 13 1/2" OD x 1/4" SIMRIZ SZ501 O-ring by Freudenberg-NOK is engineered for superior sealing performance in various industrial applications. Constructed from high-quality SIMRIZ material, this O-ring offers excellent resistance to chemicals and extreme temperatures. With a precise inner diameter of 13 inches and an outer diameter of 13 1/2 inches, it is designed to fit seamlessly in hydraulic and pneumatic systems. The 1/4" thickness ensures a secure seal, making it ideal for high-pressure environments. This product meets industry standards, ensuring compatibility and reliability across multiple applications.