In reading your repsonse I realized that, essentially, I'm using more than one part number for (almost) the same part. But I can't use simple PN cross-reference, because the parts have different specs.
I'm just trying to cut down on BOMs and routings. We make a lot of parts that are essentially the same. They have the same dimensions, the same BOM and the same routing.
I thought that if I could use a generic part that had the same BOM and routing and just put that generic part on the specific parts BOM it would make it simpler. However, we're not actually making the generic part as an assembly and putting it into the specific part as a unit. So I don't want a BOM with the generic part on it, I want the BOM for the specific part to look just like the generic one.
Boy, if you read through that and you're not shaking your head, congratulations!
I don't know if I made that clearer or muddier, but maybe it will help