Hein Werner 63752

Lowe's has a pretty healthy selection of o-rings. Was able to get what I needed for some air tools there. shame no hydraulics place close as that's where I usually end up as they usually have the oddball o-rings.
I was told by the guy that has the correct rings ( with the minimum ) that the rings are not ordinary as they are manufactured for the high pressures. Not sure I would trust Lowes after being told this. Hate doing anything twice ( no money in that :) )