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Mechanical Engineering vocabulary · CAD, Drawings and Simulation

Bill of materials

Meaning in mechanical engineering, with examples

nounCore term

In mechanical engineering, bill of materials means: A structured list of all the parts, materials and quantities needed to make a product or assembly, usually with part numbers and descriptions.

In Turkish: malzeme listesi, ürün ağacı, parça listesi

How it is used

Used in design, purchasing, production planning and ERP systems. Usually shortened to BOM, said as one word or letter by letter. Engineers create, release and update the BOM; it can appear as a table on the assembly drawing or be exported from CAD.

Example sentences

  1. Please check the bill of materials before we send it to purchasing.

  2. The washer was missing from the bill of materials, so it was never ordered.

Common collocations

  • BOM
  • update the bill of materials
  • engineering BOM
  • multi-level BOM
  • BOM structure
  • assemblyA group of parts joined together to form a unit, or the process of putting parts together. A smaller unit inside it is called a subassembly.
  • CADShort for computer-aided design: software used to create 3D models and 2D drawings of parts and assemblies, such as SolidWorks, CATIA, Siemens NX or AutoCAD.
  • spare partA replacement part kept in stock so that a worn or broken part can be changed quickly, for example a bearing, seal, belt or motor.
  • technical drawingA precise drawing of a part or assembly that shows its shape, dimensions, tolerances, material and finish, so that it can be made and inspected.
  • fastenerAny small part used to join two or more parts together, such as a bolt, screw, nut, washer, rivet or pin.

This word in other fields

The same English word can have a different meaning in another field:

More terms: CAD, Drawings and Simulation

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