At One Click Purchasing, we are your reliable source for the NSN part REX-4189A manufactured by General Dynamics Mission Systems. We carry a wide range of popular NSN items on our website, including Circuit Card Assemb like part number REX-4189A which is listed with the NSN 5998013959830 for easy identification. If you are interested in REX-4189A 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.