Part Number: 101-384120-5 (Indicator gyro horizon)Part Number: 501-1412-04 (Indicator gyro horizon)Part Number: 50-384202-3 (Indicator gyro horizon)Part Number: 615401-2-25 (Indicator gyro horizon)Part Number: 652833-63 (Indicator gyro horizon)Part Number: RCA22-7 (Indicator gyro horizon)