This foot fits "Old Style" machines.

1000 series - 1000, 1001, 1004, 1005, 1006, 1008, 1010, 1011, 1015, 1020, 1030, 1031, 1080, 1090, 1120, 1130, 1230, 1260, 1530, 1630

900 series - 900, 910, 930, 931, 932, 940, 950

800 series - 800, 801, 802, 803, 807, 808, 809, 810, 811, 817, 818, 819, 830 (Not B 830e), 831, 832, 840, 841, 842, 850 

700 series - 700, 707, 708, 709, 717, 718, 719, 730 (Not Artista 730), 731, 732, 740, 741, 742, 744

600 series - 600, 610, 640 (Not Artista 640), 642, 644 

500 series - 530 (Not B 530), 532, 534, 540