LS12157 cross-references to AE part TMS60-20491.
| A | 4.250 |
| B | 2.500 |
| C | 2.350 |
| D | 0.000 |
| E | 0.000 |
| T | 0.000 |
| T1 | 0.460 |
| T2 | 0.150 |
| T3 | 0.000 |
| R | 0.200 |
| R1 | 0.016 |
| R2 | 0.016 |
| R3 | 0.016 |
| R4 | 0.000 |
| R5 | 0.000 |
| R6 | 0.000 |
| R7 | 0.000 |
| Degree | 120.15 |
| Circle Size | 4 - 5 C/S |
| Factor | 5 |
| Weight/Foot | 2.798 |
