At One Click Purchasing, we are your reliable source for the NSN part A328 manufactured by John G Papailias Co Inc. We carry a wide range of popular NSN items on our website, including O Ring like part number A328 which is listed with the NSN 5331014064650 for easy identification. If you are interested in A328 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.