The AS568-153 SIMRIZ SZ134 is a robust sealing solution with a 3-1/2" inner diameter and a 3-11/16" outer diameter, featuring a thickness of 3/32". Manufactured by Freudenberg-NOK, this seal is designed for high performance in challenging environments. The SIMRIZ material provides exceptional resistance to a variety of chemicals and temperature extremes, ensuring longevity and reliability. This product complies with industry standards, making it suitable for hydraulic and pneumatic applications, where a secure and effective seal is crucial.