The NSN 5955011568873 (Oscillator Crystal Controlled) part number 148991-1, X243 4.0MHZ, X243 AT 4.0MHZ manufactured by Xsis Electronics 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 5955011568873 . 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 5955011568873 parts today to get started.