NPT

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Gauge dimensions are as per ASME B1.20.1.
Gauges are supplied as Basic Step & Min/Max Step.
GAUGING EXTERNAL THREADS GAUGING INTERNAL THREADS
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The Basic Step gauge when screwed onto the threads of the component by hand, should be flush with the endof the component face within 1 turn, as shown above.
With Min / Max Step Ring Gauge With Min / Max Step Plug Gauge
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When using a Min/Max Step type gauge, the end of the component face should be flush between the Minimum and Maximum steps.



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