Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 668 0356 00 found under Reactor by Rockwell Collins Inc. The National Stock Number assigned to this part is 5950000728832, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 668 0356 00.