At One Click Purchasing, we are your reliable source for the NSN part 135-SP20 manufactured by Mmc Metrology Lab Inc. We carry a wide range of popular NSN items on our website, including Ammeter like part number 135-SP20 which is listed with the NSN 6625015415288 for easy identification. If you are interested in 135-SP20 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.