Short answer is yes it will, because it really only needs to be accurate on the 63,5mm dimension.
A normal 2" triclover or triclamp is 64mm at the same point yours is 63,5mm and the clamps are called out at 67mm to allow for the tapers.
See this chart for the reference
http://www.geordi.com.au/ferrule%20dimensions.htm" onclick="window.open(this.href);return false;" rel="nofollow
The interior connections are different (thread vs bayonet), but the exterior dims are almost identical.
The keg is not rubber coated is it? If it is, you must remove the rubber and add legs of some sort.
I use the rubber coated as a fermenter, where the insulation is a good thing.