At One Click Purchasing, we are your reliable source for the NSN part SH21-4 manufactured by Composite General Inc. We carry a wide range of popular NSN items on our website, including Support Tubing like part number SH21-4 which is listed with the NSN 1560007245262 for easy identification. If you are interested in SH21-4 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.