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topic 17701

N3 finish


I have a blueprint that calls out N3 (the N3 is above a checkmark, I think indicating it is an RMS finish). I don't know what this is. Can someone answer this question?

Jan Clark
- Carlsbad, California, USA


N3 correspomds to 4 micro-inches (definition found at

Giovanni M. Ciriani
Promotion - Altavilla VI, Italy


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