The Dichtomatik OR 9.975" 0.210" 90 NBR from Freudenberg-NOK is a high-quality O-ring ideal for sealing in various industrial applications. Made from durable Nitrile Butadiene Rubber (NBR), this O-ring provides excellent resistance to oils, fuels, and chemicals. With an outer diameter of 9.975 inches and a cross-section of 0.210 inches, it meets industry standards for reliability and performance. This O-ring is perfect for hydraulic and pneumatic systems, ensuring a secure seal under pressure, making it a dependable choice for demanding environments.