Singer sewing machine genuine bobbin case cover slide plate fits:
Simanco #163800 fits:
401, 403, 404, 411G, 500, 503
Touch & Sew 600, 603, 604, 620, 620E1, 620E31, 625, 626, 626E1, 626E6, 626E7, 628, 629, 630, 630E, 635, 635E, 635E3, 635E6, 635E7, 636, 638, 639, 640
& 640E, 645, 646, 648, 649
