Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 506 1111 013 found under Resistor Assembly by Rockwell Collins Inc. The National Stock Number assigned to this part is 5905008285420, 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 506 1111 013.