At One Click Purchasing, we are your reliable source for the NSN part 6B4040 manufactured by Caterpillar Inc. We carry a wide range of popular NSN items on our website, including Pin Straight Thread like part number 6B4040 which is listed with the NSN 5315004239773 for easy identification. If you are interested in 6B4040 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.