At One Click Purchasing, we are your reliable source for the NSN part 4520 manufactured by Pulse Engineering Inc. We carry a wide range of popular NSN items on our website, including Transformer Pulse like part number 4520 which is listed with the NSN 5950004023650 for easy identification. If you are interested in 4520 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.