NPSM STRAIGHT PIPE THREADS AS PER ANSI/ASME B1.20.1

Northern Gauge manufactures NPSM plug and ring gauges these are often used for special applications where there are no internal pressures and, consequently , not sealing requirements.  These gauges are made in accordance with standard practices for straight thread gauges as outlined in ANSI/ASME B1.2 fit.

ItemDescription
NPSM011/8' NPSM 27 D/E PLUG GAUGE
NPSM021/8' NPSM 27 GO RING GAUGE
NPSM031/8' NPSM 27 NOGO RING GAUGE
NPSM041/4' NPSM 18 D/E PLUG GAUGE
NPSM051/4' NPSM 18 GO RING GAUGE
NPSM061/4' NPSM 18 NOGO RING GAUGE
NPSM073/8' NPSM 18 D/E PLUG GAUGE
NPSM083/8' NPSM 18 GO RING GAUGE
NPSM093/8' NPSM 18 NOGO RING GAUGE
NPSM101/2' NPSM 14 D/E PLUG GAUGE
NPSM111/2' NPSM 14 GO RING GAUGE
NPSM121/2' NPSM 14 NOGO RING GAUGE
NPSM133/4' NPSM 14 D/E PLUG GAUGE
NPSM143/4' NPSM 14 GO RING GAUGE
NPSM153/4' NPSM 14 NOGO RING GAUGE
NPSM161' NPSM 11.5 D/E PLUG GAUGE
NPSM16.11' NPSM 11.5 GO RING GAUGE
NPSM16.21' NPSM 11.5 NOGO RING GAUGE
NPSM171-1/4' NPSM 11.5 D/E PLUG GAUGE
NPSM181-1/4' NPSM 11.5 GO RING GAUGE
NPSM191-1/4' NPSM 11.5 NOGO RING GAUGE
NPSM201-1/2' NPSM 11.5 D/E PLUG GAUGE
NPSM211-1/2' NPSM 11.5 GO RING GAUGE
NPSM221-1/2' NPSM 11.5 NOGO RING GAUGE
NPSM232' NPSM 11.5 D/E PLUG GAUGE
NPSM242' NPSM 11.5 GO RING GAUGE
NPSM252' NPSM 11.5 NOGO RING GAUGE