The OR 19.955 0.275" 90 HNBR H901B from Freudenberg-NOK is a high-quality O-ring designed for optimal sealing in various applications. With a diameter of 19.955 mm and a cross-section of 0.275 inches, this O-ring is made from 90 durometer HNBR, providing excellent resistance to heat, oil, and chemicals. Its robust construction ensures durability and longevity, making it suitable for demanding environments. This O-ring is compliant with industry standards, ensuring reliable performance in hydraulic and pneumatic systems. Ideal for automotive and industrial applications, it offers a dependable sealing solution.