The Freudenberg-NOK OR 3.987 is a reliable O-ring constructed from 70 durometer NBR, providing excellent resistance to oils and fuels. With a cross-section of 0.103 inches, this O-ring is designed for applications requiring flexibility and durability. It meets industry standards for performance, ensuring a secure seal in various environments. The precise dimensions allow for easy installation in standard grooves, making it a practical choice for automotive and industrial applications.
