The AS568-462 16 1/2" ID x 17" OD x 1/4" SIMRIZ Z7257 O-ring from Freudenberg-NOK is designed for high-performance sealing in industrial applications. This O-ring is crafted from durable SIMRIZ material, offering excellent resistance to chemicals and extreme temperatures. With an inner diameter of 16.5 inches and an outer diameter of 17 inches, it meets AS568 standards, ensuring compatibility with a variety of systems. The 1/4" thickness enhances its sealing capabilities, making it ideal for use in hydraulic and pneumatic systems, where reliable leak prevention is crucial.