The Freudenberg-NOK AS568-042 SIMRIZ Z7257 is a precision-engineered seal with a 3-1/4" inner diameter and a 3-3/8" outer diameter, featuring a thickness of 1/16". Made from high-performance SIMRIZ material, this seal offers exceptional resistance to chemicals and temperature fluctuations, making it suitable for a variety of industrial applications. It meets AS568 standards, ensuring compatibility with numerous systems. The Z7257 is ideal for hydraulic and pneumatic uses, providing a secure and effective sealing solution.