Construction typeArmDatum diameter16.0000 in, 406.4 mmMaterialCast ironNumber of grooves8.0000O.D. (in)16.4000 , 416.56 mm
| Construction type | Arm |
| Datum diameter | 16.0000 in, 406.4 mm |
| Material | Cast iron |
| Number of grooves | 8.0000 |
| O.D. (in) | 16.4000 , 416.56 mm |