1/16-27 NPT vs 1/2-14 NPT: specs compared

Updated 05 September 2026.

21.34 mm
1/2-14 NPT wins on major diameter

On major diameter, 1/2-14 NPT leads: 21.34 mm versus 7.94 mm.

Spec1/16-27 NPT1/2-14 NPT
Designation1/16-27 NPT1/2-14 NPT
Major diameter7.94 mm21.34 mm
Threads per inch / pitch2714
Thread formtapered, 60 degreetapered, 60 degree
Seals onon the thread flanks with PTFE tapeon the thread flanks with PTFE tape

Questions and answers

Which has the higher major diameter, 1/16-27 NPT or 1/2-14 NPT?

On major diameter, 1/2-14 NPT leads: 21.34 mm versus 7.94 mm.

How do 1/16-27 NPT and 1/2-14 NPT compare?

On major diameter, 1/2-14 NPT leads: 21.34 mm versus 7.94 mm.

Compared here

1/16" NPT (National Pipe Taper) (1/16-27 NPT)1/2" NPT (National Pipe Taper) (1/2-14 NPT)