Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GCU42.B01 found under Microcircuit Digital by Bae Systems Information And Electronic Systems Integration Inc. The National Stock Number assigned to this part is 5962012099263, 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 GCU42.B01.