NATIONAL 7-P-50
| Pin of Crosshead | 1294028 |
| Extension Rod | 1294083 |
| Crosshead | 1294015 |
| Pinion Shaft | 1294010 |
| Cage, Main Bearing | 1294011 |
| Cap, Bearing Right | 1294012 |
| Connecting Rod | 1294007 |
| Bull Gear | 1294008 |
| Bearing, Crosshead | ZB-5620 |
| Bearing, Pinion Shanft | ZB-6292 |
| Bearing, Eccentric | ZB-22000 |
| Bearing, Main | ZT-10003 |