Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3330-0031 found under Microcircuit Digital by Marconi Avionics Ltd. The National Stock Number assigned to this part is 5962011165773, 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 3330-0031.