At One Click Purchasing, we are your reliable source for the NSN part 21223556 manufactured by Hammer And Steel Inc. We carry a wide range of popular NSN items on our website, including Screw Cap Hexagon H like part number 21223556 which is listed with the NSN 5305016171288 for easy identification. If you are interested in 21223556 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.