Manufacturing BOM

The bill of materials that reflects how a product is physically assembled in manufacturing, including manufacturing-specific part numbers, assembly sequences, and work instructions — distinct from the engineering BOM.

Why it matters

The MBOM is the link between what engineering designs and what manufacturing builds. Misalignment between EBOM and MBOM is a leading cause of production errors and cost overruns.

Cite this definition

Finocchiaro, Michael. “Manufacturing BOM.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/manufacturing-bom