At One Click Purchasing, we are your reliable source for the NSN part 40591A manufactured by Allegheny Valve Co. We carry a wide range of popular NSN items on our website, including Elbow Pipe like part number 40591A which is listed with the NSN 4730015117230 for easy identification. If you are interested in 40591A 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.