At One Click Purchasing, we are your reliable source for the NSN part C4420 manufactured by Dresser Industries Inc. We carry a wide range of popular NSN items on our website, including Packing Nut like part number C4420 which is listed with the NSN 4730005559404 for easy identification. If you are interested in C4420 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.