[PSUBS-MAILIST] K-sub hatch o-ring

[Jon Wallace via Personal_Submersibles]

Can someone with a K-350 measure the ID of the hatch o-ring channel and report back on it?  The K350 plans specify a 2-471 O-ring which has an ID of 21.995 inches but I'm measuring an ID of 23.25 on the K600 and I'm thinking the K350 also has an ID of 23.25.  That would seem like a bit of a "stretch" installing the 2-471.
There's a 2-472 O-ring that has an ID of 22.995 inches which would require less stretching, but...???
Will post on FB as well.
Jon

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