At One Click Purchasing, we are your reliable source for the NSN part 20FB3-1690 manufactured by Weiss Instruments Inc. We carry a wide range of popular NSN items on our website, including Thermometer Indicat like part number 20FB3-1690 which is listed with the NSN 6685012516600 for easy identification. If you are interested in 20FB3-1690 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.