Originally Posted by Seikkailu_R
7mm and 6mm is little thick for spring (~1/4 inch)...
Is 0,7mm and 0,6mm correct?
And yes, 50 x 70 x 6 is size in mm (collar not included).
Sorry if It was unclear before. I edited my post to make things clear.
I meant the thickness of the whole O-ring seal :)
[the thickness of the spring itself you can more or less read on the caliper in one of the pics in the 1st post]