Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C4B1230-31 found under Fairing Nose by Bombardier Aerospace. The National Stock Number assigned to this part is 1560000771746, 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 C4B1230-31.