UNHRB6074 Extension Spring--Used---Replaces 621339

Replaces number 621339 , 80621339

Fits: 630, 634, 638, 640, 644, 648, 650, 654, 658, 660, 664, 678, 688, 851, 852, BR7050, BR7060, BR7070, BR7080
BR7090, BR730, BR730A, BR740, BR740A, BR750, BR750A, BR770, BR770A, BR780, BR780A