The AS568-339 SIMRIZ SZ481 is a high-quality sealing solution featuring a 3-1/4" inner diameter and a 3-5/8" outer diameter, with a thickness of 3/16". Produced by Freudenberg-NOK, this seal is designed to withstand harsh conditions, offering exceptional resistance to chemicals and high temperatures. The SZ481 meets industry standards, ensuring compatibility with a wide range of applications. Ideal for hydraulic and pneumatic systems, this seal provides a reliable and durable solution for maintaining system integrity and performance.