1. 
   Circlip
   A circlip (a combination of `circle` and `clip`, and pronounced thus), also known as a C-Clip, snap ring or Jesus clip, is a type of fastener consisting of a semi-flexible metal ring with open ends which can be snapped into place, into a machined groove on a dowel pin or other part to permit rotati...
   Found op http://en.wikipedia.org/wiki/Circlip
   
   
2. 
   Circlip
   Photograph courtesy of Draper.co.ukA clip that fits in a groove on a shaft and locates the shaft axially in one direction.Circlip PliersPhotograph courtesy of Draper.co.ukPliers with a round bar at the end of each jaw that fit in the holes of a circlip so that it may be sprung open to fit or remove ...
   Found op http://www.diracdelta.co.uk/science/source/c/i/circlip/source.html
   
   

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