At One Click Purchasing, we are your reliable source for the NSN part AS568-904 (TEFLON manufactured by Danco Valve Company. We carry a wide range of popular NSN items on our website, including O Ring like part number AS568-904 (TEFLON which is listed with the NSN 5331014230800 for easy identification. If you are interested in AS568-904 (TEFLON 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.