Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BUS-61553 883B found under Microcircuit Hybrid by Data Device Corporation. The National Stock Number assigned to this part is 5962013556109, 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 BUS-61553 883B.