MD21B; AQD21B Miscellaneous Equipment Coupling Flange 5'': 828390 Parts on group Coupling Flange 5'': 828390: Pos. Part No Qty Parts name Comments 1. 828390 [1] Clamp coupling 30mm hole for propeller shaft. 2. 955693 [4] Hexagon screw L=38mm 2. 955691 [4] Hexagon screw L=25mm 3. 941909 [4] Spring washer 4. 950375 [4] Lock nut 5. 948670 [8] Hex. socket screw 6. 947345 [8] Washer Parts catalog : Extra Instrument Panel Alarm Unit: 827941 Alarm Unit: 827940 Control Cables Control Mechanism Control for Side Mounting Coupling Flange 5'': 827957 Coupling Flange 5'': 828145 Coupling Flange 5'': 828147 Propeller Shaft Flange 5'': 828388 Propeller Shaft Flange 5'': 829279 Propeller Shaft Flange 5'': 829281