Construction typeBlockDatum diameter3.5000 in, 88.9 mmMaterialCast ironNumber of grooves1.0000O.D. (in)4.1500 , 105.41 mm
| Construction type | Block |
| Datum diameter | 3.5000 in, 88.9 mm |
| Material | Cast iron |
| Number of grooves | 1.0000 |
| O.D. (in) | 4.1500 , 105.41 mm |