Compatible with:  Singer 301, 401, 403, 404, 417, 500, 503, 600, 603, 604, 620, 625, 626, 628, 629, 630, 635, 636, 638, 639, 645, 646, 648, 649, 714, 719, 724, 734, 737, 750, 755, 756, 758, 770, 774, 775, 776, 778, 900, 920, 925, 935U, 100G, 1030, 1036, 1060, 1100, 1200, 1411N, 1411U, 1425N, 1425U, 2000, 2001, 2005, 2010, 4552, 4562, 4572, 4610, 4611, 4613, 4617, 4622, 4623, 5910, 5932, 6230, 6233, 6234, 6235, 6244, 6267, 6268, 7000, 7004, 7005, 7011, 7028, 7029, 7033, 7035, 7037, 7043, 7050, 7060, 9005, 9008, 9010, 9015, 9018, 9020, 9022, 9027, 9030, 9032, 9034, 9044, 9110, 9113, 9117, 9124, 9130, 9133, 9134, 9137, 9143, 9210, 9217, 9224, 9240, 9323, 9334, 9410, 9416, 9417, 9420, 9423, 9430, 9432, 9444, 9900, 30920, 93220, 93234, DX14C