At One Click Purchasing, we are your reliable source for the NSN part MS21916D4-2 manufactured by Designed Metal Connections Inc. We carry a wide range of popular NSN items on our website, including Reducer Boss like part number MS21916D4-2 which is listed with the NSN 4730005417195 for easy identification. If you are interested in MS21916D4-2 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.