The Freudenberg-NOK Dichtomatik OR 9.725 is a robust O-ring crafted from 90 NBR (Nitrile Butadiene Rubber), featuring a diameter of 0.210 inches. This O-ring is engineered for superior sealing capabilities, offering excellent resistance to various oils and chemicals. With a hardness of 90, it provides long-lasting performance in demanding environments. Suitable for automotive and industrial applications, this O-ring adheres to strict quality standards, ensuring a reliable seal in hydraulic and pneumatic systems. Its precise sizing guarantees compatibility with a variety of fittings and components.