I don't see enough information in the text to help us out here. The say it is out of the tolerance band of presumably +/- 0.005". But they don't tell us how f

I don't see enough information in the text to help us out here. The say it is out of the tolerance band of presumably +/- 0.005". But they don't tell us how far out of tolerance it was. Was it, say 0.0055", or 0.060"? What was engineering purpose was driving that tolerance? I could see that a +/-0.005" tolerance is from the title block (common default on mechanical engineering drawings), and that this was a reference dimension and not a critical dimension. But yes, 0.005" on something 20 feet in diameter is pretty dang tight. And for reference a sheet of bog-standard copy paper is right around 0.004".