Hi BigBill,
I'm curious, what are the codes/markings on the receiver your K98? (Don't post the serial number.)
I don't have the Yugo specs or any drawings/blueprints here....that I can find offhand, so can't answer where they were originally produced.
Germany supplied M98 parts and support all over the world up to the end of WWII, so it's not surprising to find them in the mix everywhere.
The action with the 6.00" bolt length is ringing a bell somewhere in the back of my noggin. Going to have to check into that one.
From what I've been able to unearth over the years, the Karabiner 98, when adopted in 1935, was based upon the standard length action as produced at the Mauser Works hence the 6.300" dimension for the standard bolt length. 6.165" is the dimension for the intermediate bolt.
There were a few other M98 variations produced in addition to the Magnum/Standard/Intermediate/Short actions, but these four are the basic ones. (Apparently, Mauser was generally quite willing to manufacture, within reason, whatever the customer specified.)
During the war, the demand for rifles resulted in all types of actions being pressed into service; many intermediate actions found their way into the system. Throughout Germany, and in the occupied countries, there were various manufacturers of the K98. Apparently, many of them used/manufactured intermediate length actions, but the original specs called out standard length.
On a footnote, the 'K' in K98 stands for kurz (short) which refers to the shorter overall length (1,110mm or 43.7" without bayonet attached).