At One Click Purchasing, we are your reliable source for the NSN part 4E-138 manufactured by U S Bearings And Drives Inc. We carry a wide range of popular NSN items on our website, including Bearing Plain Rod E like part number 4E-138 which is listed with the NSN 3120010367428 for easy identification. If you are interested in 4E-138 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.