Construction typeArmDatum diameter13.7500 in, 349.25 mmMaterialCast ironNumber of grooves2.0000O.D. (in)13.7500 , 349.25 mm
| Construction type | Arm |
| Datum diameter | 13.7500 in, 349.25 mm |
| Material | Cast iron |
| Number of grooves | 2.0000 |
| O.D. (in) | 13.7500 , 349.25 mm |