At One Click Purchasing, we are your reliable source for the NSN part 421409 manufactured by Teledyne Camera Systems. We carry a wide range of popular NSN items on our website, including Nut Plain Knurled like part number 421409 which is listed with the NSN 5310010122357 for easy identification. If you are interested in 421409 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.