Purpose

• To define BOM content and structure.

Applicability

• All parts lists released by this CM function.

Policy/Practice

• The parts list shall contain all product design related parts, assemblies, design drawings, specs, code, packaging/boxing material, labels and publications and literature shipped with the product.
• The BOM Item Master data elements which are Engineering’s responsibility are: Find Number (tie to the pictorial), Part Number, Item Description, Weight (optional), latest drawing Revision Level, Unit of Measure, Quantity per assembly and the ECO # releasing or changing. (Include cognizant engineer if assigned by part.)
• Engineering data elements will be maintained at 100% accuracy by CM.
• All other data elements will be input by the responsible function – Labor Rates and Overhead Rates by accounting, Labor Hours by IE, Lead Time by planner, etc.
• One structure/one file/one database will be our goal. Normally the parts list (and changes theirto) will not be input to the CAD, not placed on assembly drawings, but are input once to the ERP file.
• The ERP shall be programmed to produce a parts list containing only those elements that Engineering wishes (see EDC Handbook). This parts list will be titled “Engineering Controlled Parts List” and double spaced. (Used as a “controlled document” to mark up for change.)
• The BOM structure will be jointly developed by Engineering and Manufacturing. The following guidelines will be used:
  1. Fewest possible assembly levels.
  2. Modular structure if features and options (see EDC Handbook).
  3. Standard/Common Assemblies (used in multiple products).
  4. Structured to match the manufacturing processing plan but no assembly shall be added solely to allow “stocking” of an assembly.

Procedure

• None required.

Primary Responsibility

• CM will maintain this standard up to date.

Authorization