Chuck, In France, Gas Pipe threads are tappered. However, I do not remember if they follow the Metric or British standard for size...
Didier > -----Original Message----- > From: time-nuts-boun...@febo.com > [mailto:time-nuts-boun...@febo.com] On Behalf Of Chuck Harris > Sent: Tuesday, July 07, 2009 9:33 AM > 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 > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, > go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.