At One Click Purchasing, we are your reliable source for the NSN part 388-042 manufactured by Johnson E F Co. We carry a wide range of popular NSN items on our website, including Relay Electromagnet like part number 388-042 which is listed with the NSN 5945005645421 for easy identification. If you are interested in 388-042 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.