Construction typeArmDatum diameter5.7800 in, 146.812 mmMaterialCast ironNumber of grooves1.0000O.D. (in)5.9300 , 150.622 mm
| Construction type | Arm |
| Datum diameter | 5.7800 in, 146.812 mm |
| Material | Cast iron |
| Number of grooves | 1.0000 |
| O.D. (in) | 5.9300 , 150.622 mm |