Inventory Form with Display Lookup

[Kbiddle]

Hello,
I'm using a form to enter inventory data into a table. The fields that the form is inputting into my tblInventoryData are TagNumber, PartNumber, Qty, Dept. I also have an tblItemList that has field names of PartNumber, PartDescription, UnitCost. What I would like to do is have a box on the form that would display the PartDescription when the PartNumber entered into the form matches a PartNumber in the tblItemList. I don't want the the PartDescription added to the tblInventoryData, I just what a display to confirm that the correct part is added. Can this be done? Any help would be much appreciated.

[dblife]

if you have part number as a primary key and the part's description in the same table, you can relate it to any other table where you wish to use that part number whether it is in an item list, booking history or whatever simply by basing the form on a query of the two (or more) tables.
a form based on such a query would show the part description, instantly, as a sanity check whenever a valid part number was entered.
in short - base the form you are entering details into on a query rather than a table.