Fits: Singer 27 Singer 28 Singer 66 Singer 99 Singer 101 Singer 127 Singer 128 Singer 185 Singer 192K Singer 201 Singer 301 Singer 301A Singer 306 Singer 306K Singer 319 Singer 319K Singer 401 Singer 401A Singer 403 Singer 404 Singer 500 Singer 500A Singer 501 Singer 503 Singer 504 Singer 6010 Singer 601 Singer 604 Singer 620 Singer 621 Singer 621 Singer 640 Singer 714 Singer 717 Singer 719 Singer 724 Singer 734 Singer 774 Singer 776