At One Click Purchasing, we are your reliable source for the NSN part 396-9840 manufactured by Caterpillar Inc. We carry a wide range of popular NSN items on our website, including Cylinder Assembly A like part number 396-9840 which is listed with the NSN 3040012649538 for easy identification. If you are interested in 396-9840 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.