At One Click Purchasing, we are your reliable source for the NSN part 5139421 manufactured by Superior Diesel Inc. We carry a wide range of popular NSN items on our website, including Plate Camshaft Thru like part number 5139421 which is listed with the NSN 2815012161110 for easy identification. If you are interested in 5139421 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.