The AS568-254 SIMRIZ SZ498 is engineered for optimal sealing performance, featuring a 5-1/2" inner diameter and a 5-3/4" 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 stringent industry standards, ensuring compatibility with numerous applications, including hydraulic and pneumatic systems. The SZ498 seal guarantees a reliable fit, enhancing the longevity and efficiency of your equipment.