AQ115A; AQ115B; AQ130; AQ130A; AQ130B; AQ130C; AQ130D; AQ165A; AQ170A; AQ170B; AQ170C; AQD21A; BB115A; BB115B; BB115C; BB165A; BB170A; BB170B; BB1 Miscellaneous Equipment Coupling Flange 4'': 828209 Parts on group Coupling Flange 4'': 828209: Pos. Part No Qty Parts name Comments 1. 828209 [1] Clamp coupling flang For reduction reverse gear ratio 1,91:1 2. 955676 [4] Hexagon screw 3. 942336 [4] Spring washer 4. 950374 [4] Lock nut 5. 948670 [8] Hex. socket screw 6. 947345 [8] Washer Parts catalog : Coupling Flange for Reverse Gear with 4'' Propeller Shaft Flange: 827956 Coupling Flange for Reverse Gear with 4'' Propeller Shaft Flange: 827930 Coupling Flange for Reverse Gear with 4'' Propeller Shaft Flange: 827927 Separate Exhaust Outlet and Water Intake: MD21 Separate Exhaust Outlet and Water Intake: A Propeller Shaft Stuffing Box: 828527 Coupling Flange 4'': 828210 Coupling Flange 5'': 828390 Coupling Flange 5'': 827957 Coupling Flange 5'': 828145 Coupling Flange 5'': 828147 Propeller Shaft Flange 4'': 819159