At One Click Purchasing, we are your reliable source for the NSN part AS-439 manufactured by Decatur Cylinder Inc. We carry a wide range of popular NSN items on our website, including Seal Plain like part number AS-439 which is listed with the NSN 5330014063100 for easy identification. If you are interested in AS-439 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.