Construction typeArmDatum diameter8.7800 in, 223.012 mmMaterialCast ironNumber of grooves1.0000O.D. (in)8.9300 , 226.822 mm
| Construction type | Arm |
| Datum diameter | 8.7800 in, 223.012 mm |
| Material | Cast iron |
| Number of grooves | 1.0000 |
| O.D. (in) | 8.9300 , 226.822 mm |