The Freudenberg-NOK N901W O-Ring features a diameter of 9.975 inches and a cross-section of 0.275 inches, crafted from durable NBR (Nitrile Butadiene Rubber) with a 90 durometer rating. This O-Ring is designed for effective sealing in hydraulic and pneumatic systems, providing excellent resistance to oils and fuels. Its robust construction meets industry standards, ensuring reliability and longevity in various applications. The N901W is suitable for high-pressure environments, making it a preferred choice for industrial use.