The OR 4.739 0.070" 90 NBR N901W O-ring from Freudenberg-NOK is designed for effective sealing in demanding environments. With a diameter of 4.739 inches and a cross-section of 0.070 inches, this O-ring is made from 90 durometer Nitrile Butadiene Rubber (NBR), providing excellent resistance to oils and chemicals. Its robust design complies with industry standards, making it suitable for hydraulic and pneumatic applications. This O-ring ensures a secure seal, minimizing the risk of leaks and enhancing operational efficiency.