At One Click Purchasing, we are your reliable source for the NSN part SP4B manufactured by Utah American Corp. We carry a wide range of popular NSN items on our website, including Loudspeaker Permane like part number SP4B which is listed with the NSN 5965008129158 for easy identification. If you are interested in SP4B 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.