At One Click Purchasing, we are your reliable source for the NSN part B20-05143 manufactured by Tyco Fire Products Limited. We carry a wide range of popular NSN items on our website, including Cap Valve like part number B20-05143 which is listed with the NSN 4820012643400 for easy identification. If you are interested in B20-05143 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.