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Motor Cap Screw 3/8" - Singer Featherweight 221

Reproduction motor cap for Featherweight 221.  This is the motor cap screw that measures 3/8" across the bottom*.  It covers the carbon brush inside the motor.  There are actually two motor caps on your Featherweight motor, because there are two carbon brushes - one is seen clearly on the top of the motor, but the other one is hidden on the underside. You can access the bottom motor cap by inserting a screwdriver into the allotted hole on the bottom of the machine or by removing the motor altogether.