The Freudenberg-NOK OR 2.859" 0.139" 70 VMQ SI70A4 is a high-performance O-ring designed for various industrial applications. Made from VMQ silicone, this O-ring offers excellent resistance to temperature extremes and chemical exposure. With a durometer rating of 70, it ensures a reliable seal under pressure. The dimensions of 2.859" outer diameter and 0.139" cross-section make it suitable for a wide range of fittings and connections. This O-ring complies with industry standards, ensuring compatibility with various systems.