Center Pin, S&W, # 075690000
Fits the following models only:
36, 36-1, 36-2, 36-3, 36-5, 37, 37-1, 37-2, 37-3, 37-4, 38, 38-1, 38-2, 42, 49, 60, 60-2, 60-3, 60-4, 637, 638, 638-1, 640, 640-1, 642, 649, 649-1,940, 940-1
