Construction typeBlockDatum diameter6.8000 in, 172.72 mmMaterialCast ironNumber of grooves10.0000O.D. (in)7.1500 , 181.61 mm
| Construction type | Block |
| Datum diameter | 6.8000 in, 172.72 mm |
| Material | Cast iron |
| Number of grooves | 10.0000 |
| O.D. (in) | 7.1500 , 181.61 mm |