[PSUBS-MAILIST] Conning tower hatch O-Ring

[hank pronk via Personal_Submersibles]

Mark,
The K350 has a dovetail groove, I assume you are farming out the machining.  I would say it will be cheaper to do a square groove.  I assume the K subs have the dovetail groove to secure the o-ring better while the hatch is opening, maybe?  My sub, Gamma, has a square groove and the o-ring stays put just fine.  You can do a quick google search for o-ring groove design, it is very simple.
Hank
--------------------------------------------
On Sun, 10/19/14, via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: [PSUBS-MAILIST] Conning tower hatch O-Ring
 To: personal_submersibles at psubs.org
 Received: Sunday, October 19, 2014, 8:03 PM
 
 Hello Psubs group,
 
 I would like to ask the group where I can purchase an O-Ring
 for a 24" conning tower hatch ring.  I also need to
 mill the slot in the hatch ring and would like to know the
 width and depth of the slot.  I've heard some folks
 recommend a dove tail slot for the O-ring. 
 
 Many thanks for your advise.
 
 Mark...
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