This National Acme replacement sprocket (item 42-XF) part number AM-413230 is used in Drive Unit Assembly AM-413450.  View any of the following layout assembly drawings of the complete multispindle attachment for reference. This replacement part may be used in attachment assemblies that fit numerous size Acme Gridley multi spindle screw machines and/or positions.
22845 Hoover Road
Warren, Michigan 48089
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