With four applications this Bolt (689) is the most specified part.
Parts such as the Lower Casing - Drive 2: Washer, Plate(j41), Nut(664), Bolt(61n), Prop Assy(3x9-7/8"x10-1/2"-f) are included in the C30(mh/er)s 1994 Lower Casing - Drive 2 parts fiche.
The Washer, Plate(j41) is the lowest priced item on this Lower Casing - Drive 2 schematic.
