Part Number
A unique identifier assigned to a specific part, assembly, document, or item managed in PLM, used to reference that item consistently across all systems and documents in the product lifecycle.
Why it matters
Part numbers are the primary key of the PLM data model — every BOM entry, drawing reference, and purchase order line references a part number. A poorly designed numbering scheme creates long-term data management problems that compound over the life of the product line.
External References
This term appears in
Cite this definition
Finocchiaro, Michael. “Part Number.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/part-number