Attention: The Optima series was manufactured with 2 different bobbin cases.
 This bobbin case is the old version for the bobbins that are not curved inwards ( comparison of the bobbins )!
 Bobbin case suitable for the following Husqvarna sewing machines:
 Husqvarna 7, 19E, 21, 21E, 49, 51, 52, 90, 95
 Husqvarna 100, 105
 Husqvarna Optima 120, 150, 180, 185, 190
 Husqvarna 610, 620, 630, 940, 945, 950, 960, 980, 990
 Husqvarna 2000
 Husqvarna 3000, 3010, 3300, 3310, 3320, 3610
 Husqvarna 4121
 Husqvarna 5430, 5530, 5540, 5570, 5610.5 710
 Husqvarna 6000, 6010, 6020, 6030, 6170, 6230, 6240, 6270,
 Husqvarna 6360, 6370, 6430, 6440, 6460, 6470, 6570, 6690
 etc.