At One Click Purchasing, we are your reliable source for the NSN part 6490558 manufactured by Mtu America Inc. We carry a wide range of popular NSN items on our website, including Gage like part number 6490558 which is listed with the NSN 6620000194640 for easy identification. If you are interested in 6490558 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.