How do I link to records within the same table?

This question seems like it should have an easy enough answer, but for the life of me I cannot figure this out.  The hardest thing is to explain exactly what I want to happen, so here goes.

I have a table called "Pass Down", this table is the main table for my application and is used by four different test areas on our manufacturing floor.  The data collected from each test area is almost exactly the same and they all use the same product identifiers for specific fields.  Three of the test areas test components of the final product, while the fourth is a whole product final test, which needs to be able to access the pass downs of the other areas.

The four areas are:
Bias Electrode
RF Cart
Top Plate
PM Test

The first three feed the fourth.

So what I am trying to do is create fields that look for any record created that has the same data entered into two specific fields and then create a link to the record.  The two fields that I need to use for filtering are "PM Serial Number" and "FCID", of course the filter will have to accommodate the "Test Area" as well to differentiate the records to individual fields.

I have been trying to figure out if this is something best done through a formula or is this only possible via same-table relationship?