Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 672 0221 00 found under Transformer Power A by Rockwell Collins Inc. The National Stock Number assigned to this part is 5950006485656, 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 672 0221 00.