At One Click Purchasing, we are your reliable source for the NSN part F850 manufactured by Teikoku Usa Inc. We carry a wide range of popular NSN items on our website, including Valve Check like part number F850 which is listed with the NSN 4820009689644 for easy identification. If you are interested in F850 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.