Substituting an inductor - cannot find any pieces containing inductance needed
82 uH is small enough that you will have no problem winding it on a coil former with tuning slug.
Suppliers such as Mouser may have formers with inductance per turn_squared specified. 

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You can take a tuneable inductor with higher inductance and remove wire to obtain the inductance that you want. As inductance is proportional to N^2 (turns squared) then
L1/N1^2 = L2 / N2^2  so
N2 = N1 x (L2/L1)^0.5  

So eg a 1 mH inductor with 100 turns would give ABOUT 82 uH using
N2 = 100 x (82/1000)^0.5
= 29 turns.

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As ThePhoton notes, tuneable range of the part you cited is small. You should try to ascertain what the required tuning range is for the original part. 

Also, why is it tuned? - it may be possible to alter some other circuit parameter.

Can you supply a circuit or link?