The Freudenberg-NOK OR 8.475" 0.275" 90 HNBR H901B seal is a high-performance O-ring designed for industrial applications requiring reliable sealing. Made from premium HNBR material, it offers excellent resistance to heat, oil, and chemicals, ensuring durability in challenging environments. With an outer diameter of 8.475" and a cross-section of 0.275", this seal fits standard applications and complies with relevant industry standards. It is particularly effective in hydraulic and pneumatic systems, providing a dependable seal under pressure, making it an essential component for engineers and maintenance teams.