BB231A; BB261A Miscellaneous Equipment Coupling Flange: 828147 BB231A, BB261A Parts on group Coupling Flange: 828147: Pos. Part No Qty Parts name Comments 1. 828147 [1] Clamp coupling 45mm hole for propeller shaft. 2. 955693 [4] Hexagon screw 2. 955691 [4] Hexagon screw 3. 941909 [4] Spring washer 4. 950375 [4] Lock nut 5. 948670 [8] Hex. socket screw 6. 947345 [8] Washer Parts catalog : Coupling Flange: 828145 BB231A, BB261A Coupling Flange: 827957 BB231A, BB261A Coupling Flange: 828390 BB231A, BB261A Propeller Shaft Coupling: 819105 BB231A, BB261A Propeller Shaft Coupling: 829281 BB231A, BB261A Propeller Shaft Coupling: 829279 BB231A, BB261A Propeller Bronze, Zinc Anode: A BB231A, BB261A Propeller Bronze, Zinc Anode: B BB231A, BB261A Fresh-water Cooling D13B-A MP, D13B-B MP, D13B-C MP, D13B-D MP, D13B-G MP, D13B-H MP, D13B-J MP, D13B-K MP, D13B-L MP, D13B-M MP Fresh-water Cooling D13B-A MP, D13B-B MP, D13B-C MP, D13B-D MP, D13B-G MP, D13B-H MP, D13B-J MP, D13B-K MP, D13B-L MP, D13B-M MP Hot Water Outlet D13B-A MP, D13B-B MP, D13B-C MP, D13B-D MP, D13B-G MP, D13B-H MP, D13B-J MP, D13B-K MP, D13B-L MP, D13B-M MP Water Heater and Installation Components D13B-A MP, D13B-B MP, D13B-C MP, D13B-D MP, D13B-G MP, D13B-H MP, D13B-J MP, D13B-K MP, D13B-L MP, D13B-M MP