The Freudenberg-NOK AS568-440 SIMRIZ SZ134 seal features a 6 3/4" inner diameter and a 7 1/4" outer diameter with a thickness of 1/4". Constructed from high-quality SIMRIZ material, this seal provides outstanding resistance to a variety of chemicals and extreme temperatures, making it suitable for demanding industrial applications. It adheres to AS568 standards, ensuring compatibility with numerous systems. The design is optimized for effective sealing in hydraulic and pneumatic systems, ensuring reliable performance and longevity.