At One Click Purchasing, we are your reliable source for the NSN part 501-012 manufactured by The Charles Machine Works Inc. We carry a wide range of popular NSN items on our website, including Shaft Shouldered like part number 501-012 which is listed with the NSN 3040012924443 for easy identification. If you are interested in 501-012 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.