Construction typeBlockDatum diameter4.1500 in, 105.41 mmMaterialCast ironNumber of grooves2.0000O.D. (in)5.3500 , 135.89 mm
| Construction type | Block |
| Datum diameter | 4.1500 in, 105.41 mm |
| Material | Cast iron |
| Number of grooves | 2.0000 |
| O.D. (in) | 5.3500 , 135.89 mm |