Construction typeArmDatum diameter36.0000 in, 914.4 mmMaterialCast ironNumber of grooves4.0000O.D. (in)36.4000 , 924.56 mm
| Construction type | Arm |
| Datum diameter | 36.0000 in, 914.4 mm |
| Material | Cast iron |
| Number of grooves | 4.0000 |
| O.D. (in) | 36.4000 , 924.56 mm |