At One Click Purchasing, we are your reliable source for the NSN part 420-990 manufactured by Parameter Generation And Control Inc. We carry a wide range of popular NSN items on our website, including Semiconductor Devic like part number 420-990 which is listed with the NSN 5961014076816 for easy identification. If you are interested in 420-990 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.