Class 404

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  The Singer Model 404 Sewing Machine features a slant shank and rotary hook. It uses Class 66 bobbins and 15x1 needles.

• Attachment Box for Class 404 Machines
• Singer 400 Series Model Descriptions
• The Singer 400 series represents Singer's innovative mid-century design approach, featuring the revolutionary Slant-O-Matic needle system. This comprehensive guide details the specifications and unique features of models 401, 403, 404, 411, and 431, highlighting their mechanical differences and specialized capabilities.
• A Card Table for the 400 Series
• Manual for the 404 (3.8 MB)