The NSN 4820016719569 (Valve Regulating Fluid Pressure) part number 40397 4 REV D 40397 412, 40397-412 manufactured by Trac Regulators Inc is available in Jet Parts 360’s inventory. Owned and operated by ASAP Semiconductor, Jet Parts 360 has over six billion parts in its inventory, including NSN 4820016719569 . ASAP is devoted to streamlining the parts procurement process for our customers, making it easy for them to search through billions of parts to find exactly what they are looking for. We have dedicated account managers ready to solve procurement issues our clients face, whether it’s a need for aerospace parts, or an aircraft on ground situation. Submit a Quote for NSN 4820016719569 parts today to get started.