At One Click Purchasing, we are your reliable source for the NSN part R11644A manufactured by Keysight Technologies Inc. We carry a wide range of popular NSN items on our website, including Calibrator Set Freq like part number R11644A which is listed with the NSN 6625013783890 for easy identification. If you are interested in R11644A 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.