At One Click Purchasing, we are your reliable source for the NSN part 3X-18 manufactured by Portersville Valve Company. We carry a wide range of popular NSN items on our website, including Seal Plain Encased like part number 3X-18 which is listed with the NSN 5330010198832 for easy identification. If you are interested in 3X-18 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.