Thanks for all the o-ring links! I'm also confused about sizing, especially for the smallest one for the center pin. The wiki appears to show them by ID and thickness, with the smallest being 1.78x1.78 (actually the thickest), but I'm not clear which one would work from oringsUSA. Their sizing diagram isn't terribly clear to me. Which size should I get for the 1.78x1.78? Sorry if I'm being obtuse.
This may confuse you more so if it does I apologize but once I figured out how they have it arranged I really like the site. First thing to note is they always only list 2 measurements hole size and cross section. Second thing to remember is they have all their cross sections clumped up together. Use this link since it deals with them in Metric which is what Imeo always states sizes as oringsUSA
As for their arrangement it starts with cross section sizes so first they have their 1mm cross sections listed so it would be something like this.
1.5x1
2x1
2.5x1
3x1
ect ect
Then once all the 1mm cross sections are listed it lists the next size of cross section so next would be
.8x1.1
ect
then the next size and so on. So when I am trying to find an o-ring I scroll till I find the correct cross section then I look for the hole diameter.
Hope this helps a little.
