The Freudenberg-NOK N903X O-Ring, with a diameter of 0.984 inches and a cross-section of 0.139 inches, is made from high-quality 90 durometer Nitrile (NBR). This O-Ring is specifically designed for effective sealing in various industrial applications, providing excellent resistance to oils, fuels, and other chemicals. Its robust construction ensures durability and reliability, making it suitable for hydraulic and pneumatic systems. The N903X meets industry standards, ensuring compatibility and optimal performance in demanding environments.