At One Click Purchasing, we are your reliable source for the NSN part B-3801 manufactured by Hunt Valve Company Inc. We carry a wide range of popular NSN items on our website, including Seat Valve like part number B-3801 which is listed with the NSN 4820013118385 for easy identification. If you are interested in B-3801 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.