Thread Tension Assembly - Fits Singer Model 31
-Replacement upper thread tension assembly.
-Fits Singer model 31, 31-15, 31-17, 31-18, 31-19, 31-20, 31-29, 44 class
-Replacement upper thread tension assembly.
-Fits Singer model 31, 31-15, 31-17, 31-18, 31-19, 31-20, 31-29, 44 class