Standards for G2 thread

[mully]

My OEM in Japan has sent me a drawing for a 65mm OD pipe with 5mm wall and a "G2" female thread (parallel) on one end. Where can I find the specs for this thread?

Thanks,

mully

 

[codeeng]

This is a 55 degree Whitworth pipe thread. The 2 represents 2" nominal pipe size. Ofter referred to as R2 and 2" BSPP in Europe. The standard is ISO 228. Refer to this link:

http://www.luedecke.de/en/tec/threads.html