The Freudenberg-NOK H901B O-Ring, with a cross-section of 0.139 inches and a hardness rating of 90 HNBR, is designed for optimal sealing performance in demanding applications. This O-Ring is resistant to a variety of chemicals and temperatures, making it suitable for automotive and industrial uses. 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 effective seals over time. This product complies with industry standards for quality and reliability.