I would like to know what does "Actual value" mean in case of flatness.
I understood the statement "A flatness tolerance specifies a tolerance zone defined by two parallel planes within which the surface or derived median plane must lie" in ASME Y14.5-2009. But, didn't come across the term in the specification.
"Actual Flatness" would be that flatness which is actually manufactured onto the surface in question.
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