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A crossed circle limiting where a feature may sit.
Also known as: True position symbol, Positional tolerance
The position tolerance limits how far a feature's axis or centre may stray from its theoretically exact location. It is the most used characteristic in modern tolerancing because it defines a round zone rather than the square one that coordinate dimensioning implies.
Limits the departure of a feature's axis or centre plane from its theoretically exact position relative to datums.
Contexts: Technical drawing
Defines a cylindrical tolerance zone, which is why it permits about fifty-seven per cent more acceptable parts than equivalent plus-or-minus coordinate dimensions describing a square zone.
Contexts: Technical drawing
A circle crossed by a horizontal and a vertical line extending beyond it, drawn in a rectangular frame.