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ANSI Plain Type A Washers - Preferred v. Selected

Question asked by Dan Harlan on Apr 24, 2014
Latest reply on Apr 25, 2014 by TJ McDermott

SW is the only place I can find reference to some category of Selected or Preferred for these types of Washers. ASME B18.21.1 have two series, Narrow (formerly "SAE washers") and Wide (formerly "USS Washers"). A quick check of the .094" washer shows that the Selected model matches the specification. But, I don't just want to assume.


Can someone tell me what is going on here?