What about a field on the data card called "Charted part numbers"? If your concern is search results, add the appropriate numbers to a similar, searchable, field on the data card of the Master Drawing.
If that part number only exists in a chart, this would return the master drawing in the search results.
one thing to consider with tabulated parts/drawing in EPDM is that EPDM is a FILE management system. so each file will have a Rev, but you can not rev a part of a file. so you will have to decide how you would want to handle a change to one of the sizes of your nozzle.
we have tabulated part drawings (the models have configs) in our EPDM Vault. if we need to change one size of these parts the entire drawing and model will be reved.
it sounds like you answered this one yourself along the lines of configurations, a design table might simplify and improve your results.