1-1/2-11.5 NPT vs G1/16: specs compared
Updated 05 September 2026.
48.26 mm
1-1/2-11.5 NPT wins on major diameter
On major diameter, 1-1/2-11.5 NPT leads: 48.26 mm versus 7.723 mm.
| Spec | 1-1/2-11.5 NPT | G1/16 |
|---|---|---|
| Designation | 1-1/2-11.5 NPT | G1/16 |
| Major diameter | 48.26 mm | 7.723 mm |
| Threads per inch / pitch | 11.5 | 28 |
| Thread form | tapered, 60 degree | parallel, 55 degree |
| Seals on | on the thread flanks with PTFE tape | flat washer or bonded seal on the face |
Questions and answers
Which has the higher major diameter, 1-1/2-11.5 NPT or G1/16?
On major diameter, 1-1/2-11.5 NPT leads: 48.26 mm versus 7.723 mm.
How do 1-1/2-11.5 NPT and G1/16 compare?
On major diameter, 1-1/2-11.5 NPT leads: 48.26 mm versus 7.723 mm.