At One Click Purchasing, we are your reliable source for the NSN part 640878 manufactured by Eaton Aerospace Ltd. We carry a wide range of popular NSN items on our website, including Bearing Ball Duplex like part number 640878 which is listed with the NSN 3110009458304 for easy identification. If you are interested in 640878 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.