Fit for SINGER MODELS - Centaur, 2010 (Not Touchtronic), 4613, 4617, 4623, 4663, 6234, 6235, 6250, 6251, 6267, 6268, 7000, 7005, 7027, 7037, 7043, 7050, 7057, 7060, 9113, 9117, 9124, 9133, 9137, 9143, 9217, 9224, 9240, 9417, 9900. Alternate Part Numbers Include - P60224.