At One Click Purchasing, we are your reliable source for the NSN part B1265.503 manufactured by Dynex Rivett Corp. We carry a wide range of popular NSN items on our website, including O Ring like part number B1265.503 which is listed with the NSN 5331011697144 for easy identification. If you are interested in B1265.503 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.