At One Click Purchasing, we are your reliable source for the NSN part B2991 manufactured by Curtiss Wright Electro Mechanical Corporation. We carry a wide range of popular NSN items on our website, including Adapter Check Valve like part number B2991 which is listed with the NSN 4730010066158 for easy identification. If you are interested in B2991 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.