At One Click Purchasing, we are your reliable source for the NSN part PB4A manufactured by Eaton Corporation. We carry a wide range of popular NSN items on our website, including Switch Subassembly like part number PB4A which is listed with the NSN 5930013615593 for easy identification. If you are interested in PB4A 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.