At One Click Purchasing, we are your reliable source for the NSN part 290R manufactured by Ametek Inc. We carry a wide range of popular NSN items on our website, including Valve Relief like part number 290R which is listed with the NSN 1720005661377 for easy identification. If you are interested in 290R 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.