At One Click Purchasing, we are your reliable source for the NSN part 40221-1 manufactured by Kaiser Aerospace And Electronics Co. We carry a wide range of popular NSN items on our website, including Circuit Card Assemb like part number 40221-1 which is listed with the NSN 5998000055593 for easy identification. If you are interested in 40221-1 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.