Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 165 1666 1 found under Microcircuit Hybrid by Bi Technologies Corporation. The National Stock Number assigned to this part is 5962013488648, 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 165 1666 1.