The AS568-427 SIMRIZ Z7257 is a robust 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 high performance in various industrial settings. The SIMRIZ material is known for its exceptional resistance to a wide range of chemicals and high temperatures, making it ideal for challenging applications. This product meets stringent industry standards, ensuring compatibility with numerous systems. The Z7257 is perfect for hydraulic and pneumatic systems, providing a reliable seal that enhances operational efficiency.