Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A574T077-101 found under Microcircuit Digital by Telephone Systems Communications. The National Stock Number assigned to this part is 5962010128153, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A574T077-101.