The AS568-137 SIMRIZ SZ501 seal features a 2-1/16" inner diameter and a 2-1/4" outer diameter, with a thickness of 3/32". This product from Freudenberg-NOK is engineered for high performance in demanding environments. The SIMRIZ material offers excellent chemical and temperature resistance, making it suitable for various industrial applications. Complying with industry standards, the SZ501 seal is perfect for hydraulic and pneumatic systems, providing a reliable and secure fit that enhances operational efficiency.