At One Click Purchasing, we are your reliable source for the NSN part A0312-4 manufactured by U S Dept Of Transportation Federal. We carry a wide range of popular NSN items on our website, including Washer Shouldered like part number A0312-4 which is listed with the NSN 5310002439597 for easy identification. If you are interested in A0312-4 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.