U-1649: Australia

2 1/4" X 2 5/8" (55mm X 65mm)

 

No Markings

 

Picture courtesy Chris Ronayne

2 1/4" X 2 5/8" (55mm X 65mm)

 

No Markings

 

Drawing courtesy Chris Ronayne

This insulator has no inner skirt and is not threaded. U number assignment by Bob Berry April 2016.


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