At One Click Purchasing, we are your reliable source for the NSN part B3S4 manufactured by Therm Air Mfg Co Inc. We carry a wide range of popular NSN items on our website, including Valve Solenoid like part number B3S4 which is listed with the NSN 4810006781149 for easy identification. If you are interested in B3S4 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.