The AS568-427 SIMRIZ SZ501 is a high-quality sealing component with a 4-3/4" inner diameter and a 5-1/4" outer diameter, featuring a thickness of 1/4". Produced by Freudenberg-NOK, this seal is engineered for optimal performance in various industrial applications. The SIMRIZ material is known for its outstanding resistance to chemicals and high temperatures, making it ideal for challenging environments. This product meets rigorous industry standards, ensuring compatibility with numerous systems. The SZ501 is perfect for hydraulic and pneumatic systems, providing a reliable seal that enhances operational efficiency.