A handy person from Jupiter, FL says:
February 13, 2016
Please help me identify the replacement part needed for this operator. Came off a Pan-Am window. Top screw holes to bottom screw holes ~ 5 1/8" center-to-center. Also, need to identify and order screw to atrach arm to window since threads stripped while removing. Thank you.
Dave from SWISCO responded:
February 16, 2016