Hi,
I only see one diameter on Digi-Key, do you have a link to the one you've found?
Never the less, "Supplied" should be the larger measure and "recovered" (strange term, but reasonable when you think about how it's made) should be the lesser diameter.
The cheapest heat shrink tubing usually shrinks to about half the diameter of the unshrinked tube and some of the best stuff shrinks to 1/3 the diameter.
If the "recovered" measure is within these limits (1/3 to 1/2) you can count on it as being the shrinked (minimum size).
Btw. Some people use it with a tight fit before being shrunk, which makes it rather weak - using a size that can just shrink to the needed size makes it stronger with a thicker wall and gives a much higher structural strength.