NPT Thread Ring Gauge

  • NPT thread ring gage conform:
  • - FED-STD-H28/7
NPT Thread Ring Gauge
NPT thread ring gage
Gage Code Pitch(mm) Gage Code Pitch(mm)
1/16-27NPT0.9141 1/4-11.5NPT2.209
1/8-27NPT0.9141 1/2-11.5NPT2.209
1/4-18NPT1.4112-11.5NPT2.209
3/8-18NPT1.4112 1/2-8NPT3.175
1/2-14NPT1.8143-8NPT3.175
3/4-14NPT1.814. . . . . .. . . . . .
1-11.5NPT2.2096-8NPT3.175
The taper of NPT thread ring gauge: 1:16.
NPTF thread ring gage
Gage Code Pitch(mm) Gage Code Pitch(mm)
1/16-27NPTF0.9141 1/4-11.5NPTF2.209
1/8-27NPTF0.9141 1/2-11.5NPTF2.209
1/4-18NPTF1.4112-11.5NPTF2.209
3/8-18NPTF1.4112 1/2-8NPTF3.175
1/2-14NPTF1.8143-8NPTF3.175
3/4-14NPTF1.814. . . . . .. . . . . .
1-11.5NPTF2.2096-8NPTF3.175
The taper of NPTF thread ring gauge: 1:16.