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<DIV><FONT size=2 face=Arial>John,</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Are you sure you really want an O-ring with a
one inch cross section??????????</FONT></DIV>
<DIV><FONT size=2 face=Arial>You'd need to machine a groove just under an inch
deep and an inch in across to accept it. If your hatch cover is what the
print calls for, it's not think enough for a groove of that size.
</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>The .275 cross section is plenty. The two
mating surfaces being flat and mating with no gap is much more important then
the O-ring cross section. </FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>You should be fine with the O-ring called
for. </FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Dan H.</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=subvet596@optonline.net
href="mailto:subvet596@optonline.net">subvet596@optonline.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=personal_submersibles@psubs.org
href="mailto:personal_submersibles@psubs.org">PSUBS, Inc.</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, September 18, 2013 3:35
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [PSUBS-MAILIST] O-rings</DIV>
<DIV><BR></DIV>
<DIV>Hi All:</DIV>
<DIV> </DIV>
<DIV>I need O-rings for the entry hatches which are 24" id. 26" od. he
question I have is, what is the best cross section size to use The parker site
has the E1157 @ .275 it seemed a little small to me. I have not yet machined
the dove -tail grove yet. Also are there any specs. available for setting up a
3 dog mechanism, able to open from inside or out? </DIV>
<DIV> </DIV>
<DIV>Looking forward to the convention.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>John K.</DIV>
<DIV>(203) 414-1000</DIV>
<DIV> </DIV>
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