At One Click Purchasing, we are your reliable source for the NSN part 642-492 manufactured by Steward Machine Co Inc. We carry a wide range of popular NSN items on our website, including Seat Helical Compre like part number 642-492 which is listed with the NSN 5340012909645 for easy identification. If you are interested in 642-492 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.