The Freudenberg-NOK OR 5.234" 0.139" 90 NBR N903X seal is designed for high-performance sealing applications. Constructed from premium Nitrile Butadiene Rubber (NBR), this O-ring offers excellent resistance to oils and chemicals, making it suitable for automotive and industrial applications. With a thickness of 0.139 inches, it fits securely in various assemblies, ensuring a reliable seal. This product meets industry standards for quality and performance, providing assurance of its reliability in demanding environments.