The Freudenberg-NOK OR 18.455 0.275" 90 NBR N901W O-ring is a high-quality sealing solution designed for industrial applications. Constructed from premium Nitrile Butadiene Rubber (NBR), it provides excellent resistance to a variety of chemicals, oils, and fuels. With an inner diameter of 18.455 mm and a cross-section of 0.275 inches, this O-ring adheres to strict industry standards, ensuring reliability in hydraulic and pneumatic systems. Its robust construction ensures a secure fit, preventing leaks and maintaining system integrity over time.