-Original Bobbin Hook
-Singer Part # 172080
-Fits Singer models 401A, 403A, 404, 500A, 503A using part # 172080
-Please note there is a couple of different part # used on these models
-Original Bobbin Hook
-Singer Part # 172080
-Fits Singer models 401A, 403A, 404, 500A, 503A using part # 172080
-Please note there is a couple of different part # used on these models