Construction typeBlockDatum diameter6.6000 in, 167.64 mmMaterialCast ironNumber of grooves4.0000O.D. (in)7.35, O.D. (in):7.3500 , 186.69 mm
| Construction type | Block |
| Datum diameter | 6.6000 in, 167.64 mm |
| Material | Cast iron |
| Number of grooves | 4.0000 |
| O.D. (in) | 7.35, O.D. (in):7.3500 , 186.69 mm |