At One Click Purchasing, we are your reliable source for the NSN part 440SJ1IN manufactured by Kennedy Valve. We carry a wide range of popular NSN items on our website, including Valve Check like part number 440SJ1IN which is listed with the NSN 4820001120128 for easy identification. If you are interested in 440SJ1IN 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.