At One Click Purchasing, we are your reliable source for the NSN part 813931 manufactured by Caterpillar Inc. We carry a wide range of popular NSN items on our website, including Valve Lift Check like part number 813931 which is listed with the NSN 4820014144747 for easy identification. If you are interested in 813931 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.