Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GEX0004-2-18.418055MHZ found under Crystal Unit Quartz by Goodrich Lighting Systems Gmbh. The National Stock Number assigned to this part is 5955013360638, and the Federal Supply Class is 5955 Oscillators And Piezoelectric Crystals. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like GEX0004-2-18.418055MHZ.