At One Click Purchasing, we are your reliable source for the NSN part 21489-1 manufactured by Smiths Aerospace Ltd. We carry a wide range of popular NSN items on our website, including Power Supply Assemb like part number 21489-1 which is listed with the NSN 6130010987049 for easy identification. If you are interested in 21489-1 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.