At One Click Purchasing, we are your reliable source for the NSN part S645-3 manufactured by Cosmo Corporation. We carry a wide range of popular NSN items on our website, including Knob like part number S645-3 which is listed with the NSN 5355007216944 for easy identification. If you are interested in S645-3 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.