At One Click Purchasing, we are your reliable source for the NSN part 103939 manufactured by Ap Hydraulics Ltd. We carry a wide range of popular NSN items on our website, including Seal Plain Encased like part number 103939 which is listed with the NSN 5330002855870 for easy identification. If you are interested in 103939 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.