Upper Thread Tension Check Spring Fits Many JAPANESE Models

Upper Thread Tension Check Spring Fits Kenmore Model 158.523

Upper Thread Tension Check Spring Fits Pfaff Models 260, 360

Upper Thread Tension Check Spring Fits Pfaff Models 30 & 130

Upper Thread Tension Check Spring Fits Singer Models 31, 31-15, 31-17, 31-18

Upper Thread Tension Check Spring Fits Singer 15-30, 15-86, 15-87, 15-96, 15-97

Upper Thread Tension Check Spring Fits Kenmore Models 158.480, 158.540, 158.840

Thread Tension Check Spring Fits New Home 270, 366, 370, 443, 444, 446, 447, 470