The Freudenberg-NOK OR 3.725" 0.210" 70 NBR N700W is a high-quality O-ring designed for reliable sealing in various applications. Made from durable NBR (Nitrile Butadiene Rubber), this O-ring offers excellent resistance to oils, fuels, and other chemicals, making it ideal for industrial use. With a hardness rating of 70, it ensures a secure fit and long-lasting performance. The dimensions of 3.725" outer diameter and 0.210" cross-section provide versatility for different sealing needs. This product meets industry standards, ensuring compatibility with a wide range of systems.