A-392780 item 1 - Threading Lever

This National Acme replacement threading lever part number A-392090 (item 53-XA) is used in Threading Lever Assembly A-392780.   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.

Acme Gridley 1-1/4" RB-8 Reaming Attachment - 5th Position
Acme Gridley 1-1/4" RB-8 Universal Threading Attachment - 5th Position