1/8 NPT and PT, difference??? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

JasonNagra · 05-19-2004, 07:32 PM

Is there a difference between 1/8 PT and 1/8 NPT? This may sound like a dumb question but I ASS-umed that they were the same. So, are they the same or different?? (this pretains to gauges...) Thanks, Jason.

max240 · 05-19-2004, 08:14 PM

There are different pipe thread. most u.s. stuff is NPT but most japanese (oil pressure switches etc. ) is BSPT. they are different but very close.

JasonNagra · 05-19-2004, 08:30 PM

Max,
So that means I would have to get an adapter to convert 1/8 NPT to 1/8 BSPT for the gauge senders, right??

96twofourty · 05-19-2004, 10:51 PM

they're different pitches of threads, yes you need an adaptor

GonadSX · 05-19-2004, 11:02 PM

This is what I'm doing to install a mechanical AutoMeter oil pressure gauge.

JasonNagra · 05-20-2004, 11:26 AM

Hey thanks for that pic bro!!!

05-19-2004, 07:32 PM	#1
JasonNagra Zilvia FREAK! Join Date: Aug 2002 Location: Long Beach Posts: 1,349 Trader Rating: (0) Feedback Score: 0 reviews	1/8 NPT and PT, difference??? Is there a difference between 1/8 PT and 1/8 NPT? This may sound like a dumb question but I ASS-umed that they were the same. So, are they the same or different?? (this pretains to gauges...) Thanks, Jason. __________________ http://www.imagestation.com/picture/...f/f9dc7664.jpg Edit: check your link.

05-19-2004, 08:30 PM	#3
JasonNagra Zilvia FREAK! Join Date: Aug 2002 Location: Long Beach Posts: 1,349 Trader Rating: (0) Feedback Score: 0 reviews	Max, So that means I would have to get an adapter to convert 1/8 NPT to 1/8 BSPT for the gauge senders, right?? __________________ http://www.imagestation.com/picture/...f/f9dc7664.jpg Edit: check your link.

05-19-2004, 11:02 PM	#5
GonadSX Leaky Injector Join Date: Jun 2003 Location: Ontario Posts: 131 Trader Rating: (0) Feedback Score: 0 reviews	This is what I'm doing to install a mechanical AutoMeter oil pressure gauge. __________________ Gautam :: Google Specialist :: www.my240.com

05-20-2004, 11:26 AM	#6
JasonNagra Zilvia FREAK! Join Date: Aug 2002 Location: Long Beach Posts: 1,349 Trader Rating: (0) Feedback Score: 0 reviews	Hey thanks for that pic bro!!! __________________ http://www.imagestation.com/picture/...f/f9dc7664.jpg Edit: check your link.

05-19-2004, 08:14 PM	#2
max240 Join Date: Jan 2003 Location: california Posts: 43 Trader Rating: (1) Feedback Score: 1 reviews	There are different pipe thread. most u.s. stuff is NPT but most japanese (oil pressure switches etc. ) is BSPT. they are different but very close.

05-19-2004, 10:51 PM	#4
96twofourty Zilvia Junkie Join Date: Oct 2003 Location: nor*cal Posts: 354 Trader Rating: (0) Feedback Score: 0 reviews	they're different pitches of threads, yes you need an adaptor