At One Click Purchasing, we are your reliable source for the NSN part 055-031-55 manufactured by Saint Gobain Performance Plastics. We carry a wide range of popular NSN items on our website, including Back Up Ring Prefor like part number 055-031-55 which is listed with the NSN 5330015254400 for easy identification. If you are interested in 055-031-55 item, then take the advantage of our online RFQ service, or peruse our website as you see fit to find other items of interest that you may wish to learn more about.