The Freudenberg-NOK OR 10.984 0.139" 90 NBR N901W is a high-quality O-ring designed for demanding sealing applications. Made from NBR (Nitrile Butadiene Rubber), this O-ring features a hardness rating of 90, providing excellent resistance to wear and high-pressure environments. With a diameter of 10.984 mm and a cross-section of 0.139 inches, it is suitable for hydraulic and pneumatic systems. This O-ring complies with industry standards, ensuring compatibility and reliability in various applications, effectively preventing leaks and enhancing system performance.