Find unmatched records in MS Access

I have a db that I use to find matches for parts based on an external excel spreadsheet and a SQL database.  This first pass finds all the parts with the exact same Manufacturer Part Number.  The second pass finds all the CAP and RES matches based on part criteria.  During the initial passes there will remain unmatched parts.  I need to list the parts from the excel spreadsheet for which matches are not being found in the db.  I have tried DISTINCT and <> and Not In but the list is evading me.  The db is compressed and attached.

tblBOM are the parts from the external spreadsheet.  tblMAX_MFG_PM are the parts from the SQL db.  tbl_BOM has discrete fields.  tblMAX_MFG_PM has mostly discrete fields except for the MPNDES_49 description field.  MPNDES_49 gets broken out into its various fields using some excellent code from nutsch provided some time ago for another question.
PartMatch.zip
gibneytAsked:
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Rey Obrero (Capricorn1)Connect With a Mentor Commented:
have you tried using the - Find Unmatched  query wizard

create > query wizard
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chaauCommented:
It is not clear what columns are to be used for the matching criteria. As I understood we need to use two tables: tblBOM and tblMAX_MFG_PM. Now, what columns should be used for matching?
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gibneytAuthor Commented:
Doh!.  Yep!  That'll do it.  Consider myself demured.  Thank you kind sir!
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