Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 48-38609A19 found under Crystal Unit Quartz by Motorola Ltd. The National Stock Number assigned to this part is 5955008894437, 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 48-38609A19.