The Freudenberg-NOK OR 17.955 is a high-quality O-ring made from 70 durometer NBR (Nitrile Butadiene Rubber), designed for reliable sealing in various applications. With a size of 0.139" in diameter, this O-ring is ideal for use in environments requiring resistance to oils and fuels. The N703W model ensures durability and longevity, meeting industry standards for performance. Its precise dimensions and material composition make it suitable for a range of industrial applications, ensuring a tight seal and preventing leaks.