At One Click Purchasing, we are your reliable source for the NSN part 42390 manufactured by Ridge Tool Co Inc. We carry a wide range of popular NSN items on our website, including Cutting Attachment like part number 42390 which is listed with the NSN 3419002297952 for easy identification. If you are interested in 42390 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.