At One Click Purchasing, we are your reliable source for the NSN part CSH-2640 manufactured by Dresser Rand Company. We carry a wide range of popular NSN items on our website, including Seat Valve like part number CSH-2640 which is listed with the NSN 4820012446043 for easy identification. If you are interested in CSH-2640 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.