Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QT1T9M50MHZ found under Oscillator Crystal by Q Tech Corp. The National Stock Number assigned to this part is 1680015482425, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like QT1T9M50MHZ.