Owned and operated by ASAP Semiconductor, ASAP NSN Parts is your new one-stop-shop for all your valve third stage s NSN parts and components related needs. Our goal is to make the parts purchasing process as simple as possible. With us, you can find valve third stage s with NSN 4820-00-138-2001 and manufactured by Rix Industries 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.