At One Click Purchasing, we are your reliable source for the NSN part 40591D manufactured by Allegheny Valve Co. We carry a wide range of popular NSN items on our website, including Bend Pipe Return like part number 40591D which is listed with the NSN 4730015419791 for easy identification. If you are interested in 40591D 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.