G1/8 vs 2-11.5NPSH: specs compared
Updated 05 September 2026.
59.74 mm
2-11.5NPSH wins on major diameter
On major diameter, 2-11.5NPSH leads: 59.74 mm versus 9.728 mm.
| Spec | G1/8 | 2-11.5NPSH |
|---|---|---|
| Designation | G1/8 | 2-11.5NPSH |
| Major diameter | 9.728 mm | 59.74 mm |
| Threads per inch / pitch | 28 | 11.5 |
| Thread form | parallel, 55 degree | straight (parallel), 60 degree |
| Seals on | flat washer or bonded seal on the face | gasket in the coupling |
Questions and answers
Which has the higher major diameter, G1/8 or 2-11.5NPSH?
On major diameter, 2-11.5NPSH leads: 59.74 mm versus 9.728 mm.
How do G1/8 and 2-11.5NPSH compare?
On major diameter, 2-11.5NPSH leads: 59.74 mm versus 9.728 mm.