At One Click Purchasing, we are your reliable source for the NSN part 1-20590 manufactured by Chicago Pneumatic Tool Company Llc. We carry a wide range of popular NSN items on our website, including Line Gauge Tubing A like part number 1-20590 which is listed with the NSN 3655006764959 for easy identification. If you are interested in 1-20590 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.