At One Click Purchasing, we are your reliable source for the NSN part B40040 manufactured by Engineered Systems And Development. We carry a wide range of popular NSN items on our website, including Shaft Assy Idler Se like part number B40040 which is listed with the NSN 3915009407597 for easy identification. If you are interested in B40040 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.