The Freudenberg-NOK 0.070" 70 NBR O-Ring N703W is engineered for optimal sealing performance in various industrial applications. Constructed from premium Nitrile Butadiene Rubber (NBR), this O-ring provides excellent resistance to petroleum-based fluids, making it perfect for automotive and machinery use. With a diameter of 3.739 inches, it adheres to strict industry standards, ensuring reliability and longevity. This O-ring is designed to withstand fluctuations in temperature and pressure, providing a secure seal in challenging environments.