At One Click Purchasing, we are your reliable source for the NSN part A-178 manufactured by Armstrong International Inc. We carry a wide range of popular NSN items on our website, including Plate Guide like part number A-178 which is listed with the NSN 4820004396327 for easy identification. If you are interested in A-178 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.