SIN-155819 | Singer Domestic Gear (top of upright shaft) 427-527
SIN-153487 | GEAR, FEED LARGE ROUND #153487 fits SINGER 500, 756, 758, 800 SERIES, 900
SIN-383273/174488 | Feed Dog Drive Shaft Gear Set Domestic Singer 510 513 514 518 522 527 530 383273AS
SIN-269654 | Singer Stitch gear
SIN-269653 | Singer Worm gear use with 269654
