The Freudenberg-NOK H901B O-Ring, with a cross-section of 0.139 inches and a hardness of 90 HNBR, is designed for optimal sealing performance in challenging conditions. This O-Ring is resistant to a variety of chemicals and temperatures, making it ideal for automotive and industrial applications. Its robust construction ensures durability and a long service life, while the precise dimensions guarantee a perfect fit in your assemblies. The HNBR material provides excellent resistance to heat and aging, ensuring that your seals remain effective over time. This product meets industry standards for quality and reliability.