Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A3012956 found under Crystal Unit Quartz by Mmd Components. The National Stock Number assigned to this part is 5955013641667, 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 A3012956.