At One Click Purchasing, we are your reliable source for the NSN part A21693 manufactured by Superior Air Products Co. We carry a wide range of popular NSN items on our website, including Tubing Nonmetallic like part number A21693 which is listed with the NSN 4720000190482 for easy identification. If you are interested in A21693 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.