Flange Bolt Chart
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Flange
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NPS 1
Class 150
Dimensions for NPS 1 Class 150 generic flange
4.25
3.12
X
0.5
Field
Value
Notes
Outside Diameter of Flange (O)
4-1/4"
Note
Minimum Thickness of Flange (tf)
1/2"
Note
Diameter of Bolt Circle (W)
3-1/8"
Note
Flange dimensions in seconds.
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