The AS568-252 SIMRIZ SZ501 is a high-quality sealing solution featuring a 5-1/4" inner diameter and a 5-1/2" outer diameter with a thickness of 1/8". This product from Freudenberg-NOK is designed for durability and reliability in various industrial applications. The SIMRIZ material provides excellent resistance to chemicals and high temperatures, making it suitable for demanding environments. Meeting industry standards, the SZ501 ensures compatibility with a wide range of systems, making it ideal for hydraulic and pneumatic applications.