Construction typeBlockDatum diameter4.2000 in, 106.68 mmMaterialCast ironNumber of grooves5.0000O.D. (in)4.9500 , 125.73 mm
| Construction type | Block |
| Datum diameter | 4.2000 in, 106.68 mm |
| Material | Cast iron |
| Number of grooves | 5.0000 |
| O.D. (in) | 4.9500 , 125.73 mm |