The AS568-253 SIMRIZ SZ486 seal features a 5-3/8" inner diameter and a 5-5/8" outer diameter, with a thickness of 1/8". This product from Freudenberg-NOK is crafted from high-quality SIMRIZ material, known for its exceptional resistance to various chemicals and high temperatures. It is designed to meet industry standards, making it suitable for a variety of applications, particularly in hydraulic and pneumatic systems. The SZ486 seal ensures a secure and durable fit, contributing to the overall efficiency and reliability of your machinery.