Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Z701F50MHZ found under Transducer Ultrasonic by Doers Associates Llc. The National Stock Number assigned to this part is 6635000185844, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like Z701F50MHZ.