At One Click Purchasing, we are your reliable source for the NSN part 5639 manufactured by Alter Harry Co. We carry a wide range of popular NSN items on our website, including Adapter Straight Pi like part number 5639 which is listed with the NSN 4730008264278 for easy identification. If you are interested in 5639 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.