Answers.Body: <p>Beams, axles, panels, and axles connectors usually have numbers next to them, to uniquely identifies the piece:</p>
  
  <ul>
  <li>for beams and axles, the number is the length (length in number of holes)</li>
  <li>for panels, it identifies the panel (and the panel mold contains the same number)</li>
  <li>for axle connectors, it identifies the angle (again, the same number is part of the mold, and visible on the piece)</li>
  </ul>
  
  <p>Same pieces with different colors have the same number attached </p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-11-23T12:24:01.653Z
Answers.LastActivityDate: 2014-11-23T12:24:01.653Z
Answers.UserDisplayName: Stephane Delcroix
Answers.Body: <p>These numbers indicate the length of the beam or axle shown. </p>
  
  <p>For a beam, this number is the number of holes it has. For an axle you have to hold it next to a beam and than count the number of holes.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-11-23T10:25:26.423Z
Answers.Text: Also, the instructions usually have a 'ruler' on that page of instructions so you can measure it even without a beam or brick of that length.
Answers.UserDisplayName: gev
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-11-23T09:23:15.280Z
Answers.LastActivityDate: 2014-11-23T09:23:15.280Z
Answers.UserDisplayName: Joost
Body: <p>My daughter got the LEGO Technic - Service Truck set. When we looked at the instructions, we saw a different notation on parts.</p>
  
  <p>eg: the beams (cross beam) it has number 5 in white circle. what does that 5 stand for. Other instructions in same book have the number 3 or 7 in white circle.</p>
  
  <p>Can anybody advise what these numbers mean?</p>
  
Tags: <technic><instructions>
Title: LEGO Technic part Numbers
UserDisplayName: Sunny
ThreadText: # LEGO Technic part Numbers
  
  (Asked by: username_0 on 2014-11-23)
  
  My daughter got the LEGO Technic - Service Truck set. When we looked at the instructions, we saw a different notation on parts.
  
  eg: the beams (cross beam) it has number 5 in white circle. what does that 5 stand for. Other instructions in same book have the number 3 or 7 in white circle.
  
  Can anybody advise what these numbers mean?
  
  **Tags:** technic, instructions
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2014-11-23. Score: 8
  
  Beams, axles, panels, and axles connectors usually have numbers next to them, to uniquely identifies the piece:
  
  * for beams and axles, the number is the length (length in number of holes)
  * for panels, it identifies the panel (and the panel mold contains the same number)
  * for axle connectors, it identifies the angle (again, the same number is part of the mold, and visible on the piece)
  
  Same pieces with different colors have the same number attached
  
  
  ---
  
  ### Answer by username_2 on 2014-11-23. Score: 4
  
  These numbers indicate the length of the beam or axle shown.
  
  For a beam, this number is the number of holes it has. For an axle you have to hold it next to a beam and than count the number of holes.
  
  > **Comments:**
  > **username_3**: Also, the instructions usually have a 'ruler' on that page of instructions so you can measure it even without a beam or brick of that length.  
  
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