At One Click Purchasing, we are your reliable source for the NSN part 644-1-5343 manufactured by Foremost Industries Inc. We carry a wide range of popular NSN items on our website, including Heater Vehicular Co like part number 644-1-5343 which is listed with the NSN 2540003634169 for easy identification. If you are interested in 644-1-5343 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.