The Freudenberg-NOK OR 5.359" 0.139" 90 HNBR H901B seal is designed for high-performance applications requiring durability and resistance to harsh environments. Made from high-quality HNBR material, this seal offers excellent resistance to heat, oil, and abrasion. With a size of 5.359 inches and a cross-section of 0.139 inches, it is ideal for various industrial applications. This seal meets industry standards for reliability and performance, ensuring a secure fit in your machinery. Its robust construction makes it suitable for use in demanding conditions, providing long-lasting service life.