Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 89C10305-3 found under Control Altitude Automatic Pilot by Bombardier Aerospace. The National Stock Number assigned to this part is 6615010141993, and the Federal Supply Class is 6615 Automatic Pilot Mechanisms And Airborne Gyro Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 89C10305-3.