At One Click Purchasing, we are your reliable source for the NSN part 51B4MC manufactured by Jan Hardware Mfg Co Inc. We carry a wide range of popular NSN items on our website, including Knob like part number 51B4MC which is listed with the NSN 5355011333957 for easy identification. If you are interested in 51B4MC 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.