At One Click Purchasing, we are your reliable source for the NSN part 31B40 manufactured by Barber Greene Co. We carry a wide range of popular NSN items on our website, including Seat like part number 31B40 which is listed with the NSN 2540002236124 for easy identification. If you are interested in 31B40 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.