Help with single wall side glass dimensions and Steele 1x wall side glass gaskets?

[DeadheadNM]

Can someone post the outer dimensions for single wall top side glass?

Also, has anyone tried the Steele gaskets for single wall top side glass?

I've got a set of the 1x wall Steele gaskets and tried fitting one of them to two slider top windows I have that differ in design but have same outer dimensions. The fit is loose relative to an original, intact gasket that came on one of the slider windows. The cross sectional design of the old vs. new gasket appears the same.

The above responses will help me figure out if 1) the sliders do indeed use a unique (smaller diameter window channel?) gasket, or 2) the Steele gaskets actually fit poorly out of the box, or 3) the old gaskets are shrunk and the loose fit of the new gaskets is normal and will be corrected upon install

I do not have spare 1x wall glass here to test.

Thanks!!