At One Click Purchasing, we are your reliable source for the NSN part D13-3 manufactured by Joint Oil Analysis Program. We carry a wide range of popular NSN items on our website, including Oil Standards Spect like part number D13-3 which is listed with the NSN 6650001600570 for easy identification. If you are interested in D13-3 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.