Well the 041 is 44 mm and the 041 Super is 48 mm so according to your measurement it rules them out.
Click on the link below, it will take you to Mike Acres site where a lot of Stihl chainsaws are posted,
http://www.acresinternet.com/cscc.nsf/GasbyManufacturer?OpenView&Start=124.51&Count=30&CollapseView
041 AV
Click on the link below, it will take you to Mike Acres site where a lot of Stihl chainsaws are posted,
http://www.acresinternet.com/cscc.nsf/GasbyManufacturer?OpenView&Start=124.51&Count=30&CollapseView
041 AV