Singer sewing machine models 306, 319, 320, 328, 238, 240, 248, 258, and 316 utilize type A flat cam disc #13 Solid Diamond designated as Simanco 276313

The type A flat cam disc #13 Solid Diamond, designated as Simanco 276313, is compatible with Singer sewing machine models 306, 319, 320, 328, 238, 240, 248, 258, and 316. This component ensures precise stitching and consistent performance, enhancing the overall functionality of your sewing machine for reliable results.