At One Click Purchasing, we are your reliable source for the NSN part 400C manufactured by At And T Corp. We carry a wide range of popular NSN items on our website, including Capacitor Fixed Mic like part number 400C which is listed with the NSN 5910001127703 for easy identification. If you are interested in 400C 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.