Domestic Bobbins: Singer "White Line" self winding

Singer White Line self winding Bobbin to suit:

1000 Futura, 1000G, 1040G, 1060, 1100, 1411, 1411N, 1411U, 1425, 1425G, 1425N, 1425U, 290, 290C, 600, 600E Touch & Sew, 603, 604, 620, 620E1, 620E31, 625, 626, 626E1, 626E6, 626E7, 628, 629, 630, 630E, 635, 635E3, 635E6, 635E7, 636, 638, 639, 640 Touch & Sew, 640E, 645, 646, 648, 649, 690, 700, 720, 726, 737, 740, 750, 755, 756, 758, 760, 770, 771, 775, 778, 784, 786

Part no.  163131

Genuine Parts

Alt. Part no. 506417