Singer Bobbin Winder Unit
2273 Tradition, 2277 Tradition, 2282,
3210, 3221 Simple, 3223, 3229, 3232 Simple,
3333, 3342 Fashion Mate,
4411 Heavy Duty, 4423, 4432, 4450, 4452, 44S, 5511, 5523, 5532 5554, 85SCH,
HD660, HD6600, HD6605, HD6800C,
M3220
Genuine Part Number: K6A0555000