At One Click Purchasing, we are your reliable source for the NSN part 803400 manufactured by Hyde Marine Inc. We carry a wide range of popular NSN items on our website, including Nut Plain Round like part number 803400 which is listed with the NSN 5310012392591 for easy identification. If you are interested in 803400 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.