Probably UK Standard, or UK Metric, or Japanese JIS measurement oringsOctober 12 2017 at 8:46 PM
db (Login Diamondback)
Response to Finding correct "O" size
They use a different combination of measurements.
For example, you might find a US standard or metric oring here with the correct outside diameter, but it won't have the correct thickness (which will also make the inside diameter measurement wrong), or vice-versa.
|This message has been edited by Diamondback on Oct 12, 2017 8:49 PM|