Freudenberg-NOK's AS568-203 5/16" ID x 9/16" OD x 1/8" SIMRIZ SZ498 O-ring is a reliable sealing solution for various industrial applications. Made from high-quality SIMRIZ material, it provides exceptional resistance to chemicals and high temperatures. This O-ring conforms to AS568 specifications, ensuring a precise fit for hydraulic and pneumatic systems. With dimensions of 5/16" inner diameter and 9/16" outer diameter, it is designed for effective sealing under pressure. Its compatibility with a range of fluids makes it versatile for different applications, ensuring durability and performance in challenging environments.