See if this works with your machine
This Baby Lock Bobbin Case is the standard bobbin case originally installed in the machine. You can easily tell it apart from other bobbin cases by looking for the green marking on the screw. Do not adjust the tension screw on this bobbin case with the green marked screw.
Part Number: XC3153351
Alternate number: XE5342101, XC3153251, XC3153321, XG6985001, XC3153151, XC3153221, XD1118021, XC3153121, XC3153051, XA3353151
Guaranteed to fit because it is a part.