The AS568-425 4-1/2" ID x 5" OD x 1/4" SIMRIZ SZ481 by Freudenberg-NOK is a high-performance sealing solution designed for various industrial applications. This O-ring features a durable SIMRIZ material, ensuring excellent resistance to chemicals and temperature fluctuations. With precise dimensions of 4-1/2" inner diameter and 5" outer diameter, it fits seamlessly into standard AS568 specifications. The 1/4" cross-section provides optimal sealing capabilities, making it suitable for hydraulic and pneumatic systems. This product meets industry standards, ensuring reliability and longevity in demanding environments.