The Freudenberg-NOK AS568-326 SIMRIZ Z7257 is engineered for optimal sealing performance with a 1-5/8" inner diameter and 2" outer diameter, featuring a 3/16" thickness. This seal is crafted from high-quality SIMRIZ material, offering superior resistance to harsh chemicals and extreme temperatures. It complies with industry standards, ensuring reliability in various applications. The precise dimensions guarantee a perfect fit, making it an ideal choice for enhancing the efficiency and durability of your machinery.