At One Click Purchasing, we are your reliable source for the NSN part AS21937 manufactured by Sae International. We carry a wide range of popular NSN items on our website, including Packing Nut like part number AS21937 which is listed with the NSN 4730004332974 for easy identification. If you are interested in AS21937 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.