At One Click Purchasing, we are your reliable source for the NSN part 8123139 manufactured by General Motors Llc. We carry a wide range of popular NSN items on our website, including Valve Safety Relief like part number 8123139 which is listed with the NSN 4820004995553 for easy identification. If you are interested in 8123139 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.