The AS568-045 SIMRIZ SZ481 is a robust sealing solution with a 4" inner diameter and a 4-1/8" outer diameter, featuring a thickness of 1/16". This product from Freudenberg-NOK is engineered for high performance in demanding industrial environments. The SIMRIZ material offers superior resistance to a variety of chemicals and temperature extremes, ensuring a long service life. This seal meets industry standards, making it compatible with numerous hydraulic and pneumatic applications. The AS568-045 SZ481 is an ideal choice for professionals seeking reliability and efficiency in their sealing solutions.