The Freudenberg-NOK FKM O-Ring measures 2.737 inches in outer diameter and 0.103 inches in cross-section, rated at 75 for hardness. Constructed from high-performance FKM (Fluoroelastomer), this O-Ring provides exceptional resistance to heat, chemicals, and aging, making it ideal for demanding industrial applications. Its design ensures a reliable seal in various environments, including those exposed to aggressive fluids. The precise dimensions guarantee a snug fit, preventing leaks and enhancing system efficiency, making it suitable for automotive and aerospace applications.