At One Click Purchasing, we are your reliable source for the NSN part 309-203 manufactured by Fred V Fowler Company Inc. We carry a wide range of popular NSN items on our website, including Caliper Set Microme like part number 309-203 which is listed with the NSN 5210015574474 for easy identification. If you are interested in 309-203 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.