PMI symbols reference
GD&T symbols
| Symbol | Description |
|---|---|
 |
Straightness |
 |
Flatness |
 |
Roundness |
 |
Cylindricity |
 |
Surface profile |
 |
Line profile |
 |
Perpendicularity |
 |
Angularity |
 |
Parallelism |
 |
Position |
 |
Concentricity |
 |
Symmetry |
 |
Circular runout |
 |
Total runout |
 |
Coaxiality |
 |
GD&T datum |
Dimension symbols
| Symbol | Description |
|---|---|
 |
Diameter dimension |
 |
Major diameter dimension |
 |
Minor diameter dimension |
 |
Radius dimension |
 |
Major radius dimension |
 |
Minor radius dimension |
 |
Curve length |
 |
Thickness |
 |
Center-inner dimension |
 |
Center-outer dimension |
 |
Inner-inner dimension |
 |
Outer-inner dimension |
 |
Outer-outer dimension |
 |
Angular dimension |
 |
Linear dimension |
Other symbols
| Symbol | Description |
|---|---|
 |
Surface texture |
 |
Note |
 |
Generic - Feature contains multiple PMI |