At One Click Purchasing, we are your reliable source for the NSN part S143A manufactured by Schneider Electric Usa Inc. We carry a wide range of popular NSN items on our website, including Tripper Circuit Bre like part number S143A which is listed with the NSN 5925016053421 for easy identification. If you are interested in S143A 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.