International Sewing Machine Collectors' Society

Fostering the collecting of, and research into, sewing machines.

Class 404

Singer Sewing Machine Model 404

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
Singer Model 404 reverse lever and bobbin winder.

 The reverse lever and bobbin winder on the straight stitch model 404.


ISMACS is an organization totally independent of all sewing-machine manufacturers, past or present and is not affiliated with any of the companies mentioned in these pages.  Please Note: Do not contact any ISMACS official in an attempt to solicit a valuation - it is not possible other than by hands-on assessment and your request will be ignored.

All rights reserved by ISMACS, under International and Pan American copyright conventions. Reproduction or copy of this page, in any form, in part or in whole, is strictly prohibited, without prior, written permission.