Owned and operated by ASAP Semiconductor, ASAP NSN Parts is your new one-stop-shop for all your b system return air NSN parts and components related needs. Our goal is to make the parts purchasing process as simple as possible. With us, you can find b system return air with NSN 1680-01-585-5060 and manufactured by The Boeing Company at some of the most competitive prices in the market. Just fill out and submit an RFQ to get started on a quick and competitive quote.