At One Click Purchasing, we are your reliable source for the NSN part 73421 manufactured by Lancaster Machine Mfg Co. We carry a wide range of popular NSN items on our website, including Rivet like part number 73421 which is listed with the NSN 5320012437239 for easy identification. If you are interested in 73421 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.