At One Click Purchasing, we are your reliable source for the NSN part K221 manufactured by G C S Inc. We carry a wide range of popular NSN items on our website, including Switch Electrical like part number K221 which is listed with the NSN 5930002521585 for easy identification. If you are interested in K221 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.