Thanks all for your input. I've no room for an external restraint, adding an O-ring is not preferred because that will add one mote part, GF is a good option as well as some other materials.
Dgallup - injection molding cannot hold PF tolerances of +/-.0005", also the screw machined parts a...
Presently press fit a thin walled PTFE .1000 inside diameter part onto a PEEK part to create an air tight seal. In time I noted the PTFE to cold flow enough that I suspect low pressure air may get by. I'm looking to replace the PTFE with another material. These are screw machined parts that need...
