At One Click Purchasing, we are your reliable source for the NSN part 20399 manufactured by Stanley Black And Decker Inc. We carry a wide range of popular NSN items on our website, including Setscrew like part number 20399 which is listed with the NSN 5305016122539 for easy identification. If you are interested in 20399 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.