At One Click Purchasing, we are your reliable source for the NSN part CMM20B manufactured by Deltrol Corp. We carry a wide range of popular NSN items on our website, including Valve Check like part number CMM20B which is listed with the NSN 4820015912476 for easy identification. If you are interested in CMM20B 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.