At One Click Purchasing, we are your reliable source for the NSN part 521387 manufactured by Gec Marconi Sonar Systems Ltd. We carry a wide range of popular NSN items on our website, including Shell Electrical Co like part number 521387 which is listed with the NSN 5935014750147 for easy identification. If you are interested in 521387 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.