The Dichtomatik OR 19.955" 0.210" 90 NBR from Freudenberg-NOK is engineered for effective sealing in industrial applications. Constructed from high-quality Nitrile Butadiene Rubber (NBR), this O-ring offers excellent resistance to oils, fuels, and chemicals. With an outer diameter of 19.955 inches and a cross-section of 0.210 inches, it adheres to industry standards for performance and durability. This O-ring is suitable for hydraulic and pneumatic systems, ensuring a secure seal even under high pressure, making it a reliable choice for tough environments.