At One Click Purchasing, we are your reliable source for the NSN part 20-488 manufactured by Dresser Industries Inc. We carry a wide range of popular NSN items on our website, including Bearing Washer Thru like part number 20-488 which is listed with the NSN 3120006957315 for easy identification. If you are interested in 20-488 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.