Hello, Mike Pecanic. When I measure my bridge, the outside of the legs are spread ~ 6 in. apart, and the top of the bridge reaches ~ 6 1/2 in. high from the top table. On my bass, the table arch is more pronounced than was on my Strunal and so it's probably about 7 in. high from the bottom feet to the top of the bridge.
With your bridges, are you talking about how far the feet are spread apart from the outside, the inside, or is it a different dimension?
http://www.mikepecanic.com/content.php?id=bass_bridges