| Part # | Alternate Part # | Description |
| BCA/NATIONAL 203FF | | Ball Bearing Outer Race Radius=0.024" Bore=0.6693" Outer Diameter=1.5748" Width=0.4724" Inner Race Radius=0.024" |
| BCA/NATIONAL 206FF | | Ball Bearing Bore=1.1811" Outer Diameter=2.4409" Width=0.6299" Inner Race Radius=0.0402" |
| BCA/NATIONAL 5000KFF | | Ball Bearing Outer Race Radius=0.0252" Bore=1.5748" Outer Diameter=2.4409" Width=0.9449" Inner Race Radius=0.026" |
| BCA/NATIONAL 5001KFF | | Ball Bearing Outer Race Radius=0.024" Bore=1.5748" Outer Diameter=2.4409" Width=0.9449" Inner Race Radius=0.026" |
| BCA/NATIONAL 5106WCC | | Ball Bearing Bore=1.1811" Outer Diameter=2.1654" Width=0.9063" Inner Race Radius=0.0591" |
| BCA/NATIONAL 5206DD | | Ball Bearing Outer Race Radius=0.04" Bore=1.1811" Outer Diameter=2.4409" Width=1.0625" Inner Race Radius=0.04" |
| BCA/NATIONAL 88506 | | Ball Bearing Outer Race Radius=0.0402" Bore=1.1811" Outer Diameter=2.4409" Width=0.9449" Inner Race Radius=0.0902" |
| BCA/NATIONAL 907257 | | Ball Bearing Bore=1.5743" Outer Diameter=2.4411" Width=0.812" Inner Race Radius=0.04" |