2" Type A / B (A-A-59326) vs 2-1/2-7.5NH: specs compared

Updated 05 September 2026.

77.94 mm
2-1/2-7.5NH wins on major diameter

On major diameter, 2-1/2-7.5NH leads: 77.94 mm versus 63 mm.

Spec2" Type A / B (A-A-59326)2-1/2-7.5NH
Designation2" Type A / B (A-A-59326)2-1/2-7.5NH
Major diameter63.0 mm77.94 mm
Threads per inch / pitchn/a (lever cam)7.5
Thread formcam-and-groove, no threadstraight (parallel), 60 degree
Seals ongasket compressed by the cam armsrubber gasket in the female swivel

Questions and answers

Which has the higher major diameter, 2" Type A / B (A-A-59326) or 2-1/2-7.5NH?

On major diameter, 2-1/2-7.5NH leads: 77.94 mm versus 63 mm.

How do 2" Type A / B (A-A-59326) and 2-1/2-7.5NH compare?

On major diameter, 2-1/2-7.5NH leads: 77.94 mm versus 63 mm.

Compared here

2" camlock (cam-and-groove) coupling (2" Type A / B (A-A-59326))2-1/2" NH fire hose thread (NST) (2-1/2-7.5NH)