I need help in identifying part. I tried to do it on my own but failed.
Please see attached photos
Dave Sr. from SWISCO responded:
April 14, 2015
Take a look at our 39-114L handle. It has the same snap on feature to lock onto the casement operator as the one you show in your photo. Also check to see if your handle and operator have the 11/32" spline size, as the 39-114L handle does.