| OUTSIDE DIAMETER | When O.D. is 24" or less | +1/8", -1/16" |
| OUTSIDE DIAMETER | When O.D. is over 24" | +1/8", -1/8" |
| INSIDE DIAMETER | When I.D. is 10" and Smaller | +1/32",- 0" |
| INSIDE DIAMETER | When I.D. is over 10” | +1/16",- 0" |
| CONTACT FACE DIAMETER | 1/16" Raised Face And 1/4" Raised Face | +1/64",- 1/64" |
| DRILLING | Bolt Hole Diameter | +1/32”, -1/32” |
| DRILLING | Bolt Circle Diameter | + 1/16”, - 1/16" |
| DRILLING | Bolt Hole Spacing | + 1/32”, - 1/32" |
| THICKNESS | When nominal size is 18" and smaller | +1/8", -0" |
| THICKNESS | When nominal size is 20" and larger | +3/16",- 0" |
