3/4-14NPSH vs G3/8: specs compared
Updated 05 September 2026.
26.29 mm
3/4-14NPSH wins on major diameter
On major diameter, 3/4-14NPSH leads: 26.29 mm versus 16.662 mm.
| Spec | 3/4-14NPSH | G3/8 |
|---|---|---|
| Designation | 3/4-14NPSH | G3/8 |
| Major diameter | 26.29 mm | 16.662 mm |
| Threads per inch / pitch | 14 | 19 |
| Thread form | straight (parallel), 60 degree | parallel, 55 degree |
| Seals on | flat washer or gasket in the coupling | flat washer or bonded seal on the face |
Questions and answers
Which has the higher major diameter, 3/4-14NPSH or G3/8?
On major diameter, 3/4-14NPSH leads: 26.29 mm versus 16.662 mm.
How do 3/4-14NPSH and G3/8 compare?
On major diameter, 3/4-14NPSH leads: 26.29 mm versus 16.662 mm.