Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 705-3520-870 found under Resistor Fixed Film by Rockwell Collins Inc. The National Stock Number assigned to this part is 5905013220383, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 705-3520-870.