This needle plate is designed for use with heavy duty work and has been tested to fit Singer Sewing Machine Models: Classes: 31, 44, 95, 96, 191D, 195K, 196K, 241, 245, 251, 281, 331K, 336K, 400W, 451K, 491, 591D, 600W, 660A, 771, 1300, and Centurion 121D.
