The AS568-259 6-1/4" ID x 6-1/2" OD x 1/8" SIMRIZ SZ498 O-ring by Freudenberg-NOK is engineered for superior sealing performance in various applications. Constructed from high-quality SIMRIZ material, it offers exceptional resistance to a wide range of chemicals and temperatures. With an inner diameter of 6-1/4" and an outer diameter of 6-1/2", this O-ring meets the AS568 standard, ensuring compatibility with numerous systems. Its 1/8" thickness enhances sealing efficiency, making it ideal for both hydraulic and pneumatic uses. This product is designed to provide long-lasting durability and reliability in challenging environments.