| National Precision Bearing p/n | RBC Heim Part Number |
| M81935/6-03 | MPHE03 |
| M81935/6-04 | MPHE04 |
| M81935/6-05 | MPHE05 |
| M81935/6-06 | MPHE06 |
| M81935/6-07 | MPHE07 |
| M81935/6-08 | MPHE08 |
| M81935/6-10 | MPHE10 |
| M81935/6-12 | MPHE12 |
| M81935/6-14 | MPHE14 |
| M81935/6-16 | MPHE16 |
| M81935/6-03 | MPHT03 |
| M81935/6-04 | MPHT04 |
| M81935/6-05 | MPHT05 |
| M81935/6-06 | MPHT06 |
| M81935/6-07 | MPHT07 |
| M81935/6-08 | MPHT08 |
| M81935/6-10 | MPHT10 |
| M81935/6-12 | MPHT12 |
| M81935/6-14 | MPHT14 |
| M81935/6-16 | MPHT16 |