At One Click Purchasing, we are your reliable source for the NSN part PDG3690 manufactured by Product Development Group Inc. We carry a wide range of popular NSN items on our website, including Valve Heater Contro like part number PDG3690 which is listed with the NSN 2540000066172 for easy identification. If you are interested in PDG3690 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.