Construction typeBlockDatum diameter9.0000 in, 228.6 mmMaterialCast ironNumber of grooves4.0000O.D. (in)9.4000 , 238.76 mm
| Construction type | Block |
| Datum diameter | 9.0000 in, 228.6 mm |
| Material | Cast iron |
| Number of grooves | 4.0000 |
| O.D. (in) | 9.4000 , 238.76 mm |