The AS568-340 SIMRIZ Z7257 is a reliable sealing solution with a 3-3/8" inner diameter, 3-3/4" outer diameter, and a thickness of 3/16". Manufactured by Freudenberg-NOK, this seal is made from high-performance SIMRIZ material, known for its exceptional resistance to chemicals and high temperatures. Ideal for use in hydraulic and pneumatic applications, the AS568-340 meets industry standards for quality and compatibility. This seal effectively prevents leaks and maintains system integrity, making it a preferred choice for professionals in various industrial sectors.