Re: straight pipe thread


<wwj2110@xxxxxxx> wrote in message
news:1133295016.104083.283260@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> anyone have a union for 3/8 pipe? I need the thread dimension for
> the mechinical coupling part. I think its national straight pipe
> thread.
>
>
> thanx jerry
>

Near as I can tell, they are not standardized. I've had occasion where
the entire union would have to be replaced because of the differences.

I have one in my hands. The major diameter of the male portion of the
union measures 1.150", with an 18 pitch thread.

Harold


.

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