Imperial bushing measurements needed

[pianomanpj]

I'm having some between-center bushings made for the Imperial, and I don't have the proper measurements. (The INSIDE diameter of the tubes, and the OUTSIDE diameter of the fittings.)

I could take a shot with my calipers but they are of the $25 variety, and although I trust them for doing comparative work (with itself), I'm not sure how precise they really are.

Anyone happen to know, or could precisely measure, the dimensions for the Imperial?

Many thanks!

 

[OKLAHOMAN]

Lower .552 outside .427 inside
Upper .616 outside .510 inside
According to The chart in the library

 

[pianomanpj]

Thanks, Roy!

I don't know why I didn't think to check there. I just checked and I'm reading .429 for the I.D. of the brass lower (body) tube from the following source:

http://content.penturners.org/library/general_reference/bushingsandtubes.pdf

Are you referencing another source?

Lower .552 outside .427 inside
Upper .616 outside .510 inside
According to The chart in the library

 

[OKLAHOMAN]

http://content.penturners.org/library/general_reference/csusa_bush_tube.pdf

 

[pianomanpj]

http://content.penturners.org/library/general_reference/csusa_bush_tube.pdf

Thanks again, Roy. That version is about 4 years more current so I'll tentatively go with that one. I'm going to (attempt to) measure the inside of my tubes tonight and see if I get in the ballpark.

 

[ed4copies]

This may help, from the original instruction sheet

 

[pianomanpj]

This may help, from the original instruction sheet

Thanks, Ed!