Inline variable substitution to end at a certain character

I am working in ArcGIS ModelBuilder.

For one of my models I would like to use an iterator (Iterate Feature Classes) but am having difficulties with the Wildcard.

Here is an example of some of the data files:

LC_1990_final,
LC_1990_final_NoWater,
LC_2000_final,
LC_2000_final_NoWater,
**Other additional years with the same naming convention

I have a series of models that incorporate this naming convention so I would rater not change all my models.

I am looking to only iterate over the LC_1990_final and LC_200_final and not the LC_1990_final_NoWater and LC_2000_NoWater.

I know I could do *_NoWater if I was looking to further process the NoWater files. However, I am looking to process just the other set of files.

Is there another symbol similar to * that would do a hard stop and allow the iterator only to select LC_1990_final and LC_2000_final?