Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BS4107 found under Microcircuit Digital by Thermo Electron Manufacturing. The National Stock Number assigned to this part is 5962002769932, 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 BS4107.