The AS568-154 SIMRIZ SZ498 seal features a 3-3/4" inner diameter and a 3-15/16" outer diameter, with a thickness of 3/32". Manufactured by Freudenberg-NOK, this seal is engineered for high performance in various sealing applications. The SIMRIZ material is known for its exceptional resistance to wear, chemicals, and temperature fluctuations, making it ideal for both hydraulic and pneumatic systems. This seal complies with industry standards, ensuring compatibility and reliability in demanding environments. The SZ498 is designed to provide a tight seal, enhancing the efficiency and longevity of your equipment.