Construction typeArmDatum diameter10.2500 in, 260.35 mmMaterialCast ironNumber of grooves1.0000O.D. (in)10.2500 , 260.35 mm
| Construction type | Arm |
| Datum diameter | 10.2500 in, 260.35 mm |
| Material | Cast iron |
| Number of grooves | 1.0000 |
| O.D. (in) | 10.2500 , 260.35 mm |