At One Click Purchasing, we are your reliable source for the NSN part 73840 manufactured by Litton Systems Inc. We carry a wide range of popular NSN items on our website, including Switch Waveguide like part number 73840 which is listed with the NSN 5985008128319 for easy identification. If you are interested in 73840 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.