Parts such as the E-1: Bolt,flange,sh,6x25, Clip B,tube, Gasket,head Cover (nas), Cover Comp,head are included in the Nps50 Zoomer 2008 (8) Japan Af58-170 E-1 parts fiche.
The component with the lowest price in the E-1 schematic is the Bolt,flange,sh,6x25.
This schematic depicts all components used in the Nps50 Zoomer 2008 (8) Japan Af58-170 E-1 partslist.