Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ES5900-00302BCB found under Microcircuit Digital by Drs Sustainment Systems Inc. The National Stock Number assigned to this part is 5962000240653, 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 ES5900-00302BCB.