ASME B1.20.7 Hose Coupling Threads: NPSH (pipe-size hose)

All 10 thread sizes per ASME B1.20.7. Click any row for full specifications, tolerances, and geometry.

DesignationDiameter (in)TPISpecs
1/2"0.832314 TPI
3/4"1.042814 TPI
1"1.305111.5 TPI
1 1/4"1.649911.5 TPI
1 1/2"1.888811.5 TPI
2"2.362811.5 TPI
2 1/2"2.85548 TPI
3"3.48178 TPI
3 1/2"3.9828 TPI
4"4.48038 TPI

Showing 10 thread sizes • Standards: ASME B1.20.7