At One Click Purchasing, we are your reliable source for the NSN part 548-4 manufactured by Monarch Machine Tool Co. We carry a wide range of popular NSN items on our website, including Seal Plain Encased like part number 548-4 which is listed with the NSN 5330002866816 for easy identification. If you are interested in 548-4 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.