NPSF ANSI/ASME B1.20.3 – STRAIGHT PIPE THREAD GAUGES

NPSF ANSI/ASME B1.20.3 – STRAIGHT PIPE THREAD GAUGES

Northern Gauge manufactures NPSF plug and ring gages.  Threads of this type are a straight thread and generally not used for sealing as the root and crest do not mate.