Machined endcap with single O-ring design using Silicone 1/8 inch O-Ring AS568A Dash Number 238 http://www.mcmaster#9396K227
Pressure tested to 120 PSI (270feet aproxmility)
Cad file and PDF attached note work in progress.
Thanks for postin this Mark! You were planning on using a thicker o-ring, correct? What size were you going for next?
I was thinking about 3/16 O-ring same material.
Next is to test on tubing on high side of tolerance +.030" dia.
Thanks for sample.