New replacement bobbin case latch spring.

Part # 163300

Fits Singer models: 1060, 1040G, 1100, 1411U, 1425U, 290C, 600, 603, 604, 620, 620E31, 625, 626, 628, 629, 630, 630E, 635, 636, 636E3, 636E6, 636E7, 638, 638E6, 638E7, 639, 640E, 645, 646, 648, 649, 668, 668E3, 700, 714, 717 School, 719, 724, 734, 737, 750, 755, 756, 758, 770, 774, 775, 776, 778