Answers.Body: <p>The parts you are looking for are <a href="http://www.bricklink.com/catalogItem.asp?P=44224" rel="nofollow">Technic Rotation Joint Disk with Pin Hole and 3L Liftarm Thick</a> and <a href="http://www.bricklink.com/catalogItem.asp?P=44225" rel="nofollow">Technic Rotation Joint Disk with Pin and 3L Liftarm Thick</a>.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-08-04T10:37:11.887Z
Answers.Text: Do you know if they make sense when they are not in pairs?
Answers.UserDisplayName: auselen
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-08-04T15:23:35.697Z
Answers.Text: Can you expand on "make sense"? I have seen one half used by itself in both MOCs and official sets such as http://www.bricklink.com/catalogItem.asp?S=6857-1 mostly as fork/hub connection for motorcycles.
Answers.UserDisplayName: Nathan Stohlmann
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-08-04T18:31:52.550Z
Answers.Text: While they go nicely together, they are not pre-assembled, so they are to be considered as individual parts which can be used independently. I didn't know it even happened in an official LEGO set, though - nice catch
Answers.UserDisplayName: Joubarc
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-08-04T22:34:29.637Z
Answers.Text: I think I just meant if they are functional as individual parts, like you can get some other kind of rotation. I found them as 4 pairs in a flee market so I don't really know where they came from.
Answers.UserDisplayName: auselen
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-08-04T08:35:20.657Z
Answers.LastActivityDate: 2013-08-05T09:40:33.570Z
Answers.LastEditDate: 2013-08-05T09:40:33.570Z
Answers.UserDisplayName: gev
Body: <p>Any part number information about this technic beam? </p>
  
  <p><img src="https://i.sstatic.net/Vx3Kx.jpg" alt="enter image description here"></p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2014-09-13T14:49:20.053Z
Comments.Text: I just realized this is the piece used for legs in AT-AT walker 8129.
Comments.UserDisplayName: auselen
Tags: <technic><part-identification>
Title: Identification of arm like beam
UserDisplayName: auselen
ThreadText: # Identification of arm like beam
  
  (Asked by: username_0 on 2013-08-04)
  
  Any part number information about this technic beam?
  
  ![enter image description here](https://i.sstatic.net/Vx3Kx.jpg)
  
  **Tags:** technic, part-identification
  
  > **Comments:**
  > **username_0**: I just realized this is the piece used for legs in AT-AT walker 8129.  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2013-08-04. Score: 7 | Accepted answer
  
  The parts you are looking for are [Technic Rotation Joint Disk with Pin Hole and 3L Liftarm Thick](http://www.bricklink.com/catalogItem.asp?P=44224) and [Technic Rotation Joint Disk with Pin and 3L Liftarm Thick](http://www.bricklink.com/catalogItem.asp?P=44225).
  
  > **Comments:**
  > **username_0**: Do you know if they make sense when they are not in pairs?  
  > **username_2**: Can you expand on "make sense"? I have seen one half used by itself in both MOCs and official sets such as http://www.bricklink.com/catalogItem.asp?S=6857-1 mostly as fork/hub connection for motorcycles.  
  > **username_3**: While they go nicely together, they are not pre-assembled, so they are to be considered as individual parts which can be used independently. I didn't know it even happened in an official LEGO set, though - nice catch  
  > **username_0**: I think I just meant if they are functional as individual parts, like you can get some other kind of rotation. I found them as 4 pairs in a flee market so I don't really know where they came from.  
  
  ---
  
  