At One Click Purchasing, we are your reliable source for the NSN part 1-520 manufactured by Allied Controls Inc. We carry a wide range of popular NSN items on our website, including Resistor Adjustable like part number 1-520 which is listed with the NSN 5905001077751 for easy identification. If you are interested in 1-520 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.