When performing "File > Import > CatiaV5" using Input file source set to Teamcenter, during the browse to expand Item Revision containing the Catia V5 dataset, there is no dataset visible under the Item Revision to select from.
This can be due to the Catia V5 dataset, which resides under the Item Revision, not matching the condition specified by the TC preference "TC_NX_DataExchange_Dataset_Preferences", which has values starts with CATIAV5:IMPORT like below:
CATIAV5:IMPORT:EXT=catpart:TYPE=Image:REL=IMAN_manifestation:REF_TYPE=Image
What the above value means is that during Catia V5 import, NX will reveal the dataset in the dialog if the following criteria matches up:
Example to demonstrate the above:
CATIAV5:IMPORT:EXT=catpart:TYPE=Image:REL=IMAN_manifestation:REF_TYPE=Image
Another example to demonstrate this, is with a custom dataset type "CATPart":