[time-nuts] 1" 14 tpi UNS die

[David C. Partridge]

That is known over here as BSP (British Standard Pipe), or more pickily,
BSPP (last P=Parallel) aka British Gas), there is also BSPT (T= Taper).

I tried a BSP parallel 3/4" (also used for plumbing over here) but it
doesn't (quite) fit.

Dave 

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Chuck Harris
Sent: 07 July 2009 15:33
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 1" 14 tpi UNS die

Hi Dave,

That would 3/4 inch NPT (National Pipe Thread).  In the UK it is known as
"Gas Pipe".  As far as I can tell, it is standard the world over.

There are some differences, that won't matter in your application.  In
Europe, NPT is frequently not tapered.  This is apparently the result of not
understanding that tapered pipe thread is self sealing.  As a result, there
have been all sorts of o-ring jamb nuts and other insane stuff done "over
there" to try and form a temporary seal... but I digress.

-Chuck Harris

David C. Partridge wrote:
> <http://pewa.panasonic.com/emp/products/gps_pdf/vic100.pdf> is where I 
> got the specification for the thread from.
> 
> Pipe has O.D. of 1".
> 
> Dave

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