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[Tigers] oil gauge block adaptor

To: "'Terry Lawell'" <tlawell@austin.rr.com>
Subject: [Tigers] oil gauge block adaptor
From: "Ron Fraser" <rfraser@bluefrog.com>
Date: Sun, 4 Jul 2021 12:02:11 -0400
Cc: tigers@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: tigers@autox.team.net
Thread-index: Addw6pQBfy/RbYPRRrygdTvQ3DQ/iQ==
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Terry

                I did some more digging and I find there is a difference =
in the number of threads per inch.

=20

NPTF

1/8=E2=80=9D       27 threads/ inch

=C2=BC=E2=80=9D           18

=20

BSPT

1/8=E2=80=9D       28 threads/ inch

=C2=BC=E2=80=9D           19

=20

So these 2 systems have threads that are not totally compatible or =
interchangeable.=20

=20

I believe the tubing end of the adaptor is parallel thread.

The threads per inch is the same for either system tapered or parallel.

=20

I would suggest measuring the part accurately is the only way to know =
for sure.

=20

Ron Fraser

=20

=20


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lang=3DEN-US link=3Dblue vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'>Terry<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 I did some more digging and I =
find there is a difference in the number of threads per =
inch.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'>NPTF<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'>1/8=E2=80=9D=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
 27 threads/ inch<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:windowtext'>=C2=BC=E2=80=9D=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0 18<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'>BSPT<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'>1/8=E2=80=9D=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
 28 threads/ inch<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:windowtext'>=C2=BC=E2=80=9D=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0 19<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:windowtext'>So these 2 systems =
have threads that are not totally compatible or interchangeable. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:windowtext'>I believe the tubing =
end of the adaptor is parallel thread.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:windowtext'>The threads per inch =
is the same for either system tapered or =
parallel.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:windowtext'>I would suggest =
measuring the part accurately is the only way to know for =
sure.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:windowtext'>Ron =
Fraser<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:windowtext'><o:p>&nbsp;</o:p></span></p></div></body></htm=
l>
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