This feed dog screw, part # 379505-451, is compatible with feed dog part # 181512, allowing for smooth and efficient operation of your machine.

Fits Singer models: 1021, 1022, 1040G, 1100, 1411N, 1411U, 1425G, 1425N, 1425U, 495, 501, 502, 507, 509, 513, 514, 518, 522, 527, 533, 534, 800 Series