Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C4BM1221-1 found under Bracket Structural by Bombardier Aerospace. The National Stock Number assigned to this part is 1560008669528, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C4BM1221-1.