At One Click Purchasing, we are your reliable source for the NSN part 405440 manufactured by Allied Signal Inc. We carry a wide range of popular NSN items on our website, including Head Valve like part number 405440 which is listed with the NSN 1650001803894 for easy identification. If you are interested in 405440 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.