At One Click Purchasing, we are your reliable source for the NSN part EM257 manufactured by Johnson Bronze Co. We carry a wide range of popular NSN items on our website, including Bearing Sleeve like part number EM257 which is listed with the NSN 3120000201068 for easy identification. If you are interested in EM257 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.