There's no simple answer, unlike WOW each class does not stick to 1 armor type.
Some chain is not LNC armor, like Sentinel Chainmail.
Some chain is LNC armor, like Bronze Hauburgeon.
Most cloth is not LNC armor, but some cloth like the Acton is LNC armor.
LNC is one the harder classes to find suitable armor for, overall, if that helps.
EDIT: going through a db, here are some LNC armor types:
Cuirass (Full Plate)
Hauburgeon (War Garb, Heavy Chain)
Jacket (War Garb, Leather)
Acton (War Garb, Cloth)
Shirt (Attire, Cloth)
It seems like you won't have any problems finding LNC armor at mid & higher levels.
Edited, Sep 20th 2010 6:24pm by ixion13