At One Click Purchasing, we are your reliable source for the NSN part PB4-40SO5 manufactured by Alcoa Global Fasteners Inc. We carry a wide range of popular NSN items on our website, including Thumbscrew like part number PB4-40SO5 which is listed with the NSN 5305009325659 for easy identification. If you are interested in PB4-40SO5 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.