| Model | Channels | Description | Cal Fixture | Regulated? |
| 3500 | Leg Combinations | No | ||
| 4949 | 6 | Upper Neck | 7645 | No |
| 4985 | 3 | Upper Neck | 5029 | No |
| 5580 | 3 | T1 Thoracic Vertebrae | 5680 | No |
| 6005 | 1 | Skull Spring | 6036 | No |
| 6289 | 3 | Skull Cap Load Cell Assembly | 6385 | No |
| 6324 | 1 | Spring Tube Assembly, Posterior | 6036 | No |
| 6327 | 1 | Spring Tube Assembly, Anterior | 6036 | No |
| 6350 | 3 | Skull Cap Load Cell | 6385 | No |
| 6580 | 6 | L5 Lumbar | 6745 | No |
| 6590 | 6 | L5 Lumbar Assembly | 6745 | No |