Which item identifies a part with a unique name and/or number?

• A. Unique part name and/or number
• B. Designer name
• C. Date created
• D. Project phase

Answer: (A)

Giving each part a distinct name or number creates a single, unambiguous reference that appears on drawings, bills of materials, purchase orders, and manufacturing instructions. This unique identifier stays with the part through revisions and different projects, enabling precise traceability and clear communication. Metadata like a designer’s name or the date created doesn’t by itself guarantee uniqueness, and a project phase only indicates where the part is in the workflow rather than its identity. So, the ability to identify a part with a unique name and/or number is the reliable way to ensure unambiguous identification.