Hitachi 312-324 Spare Part - Wheel Washer (c)

Hitachi 312324 — Wheel washer (C) for CM12Y disc cutters. This original Hitachi wheel washer is the “C” spacer used to lock and center the cutting disc on the CM12Y spindle; it appears on Hitachi parts lists for the CM12Y disc cutter.

Key detail: the washer is listed with an outer diameter of about 100 mm, sized to suit the CM12Y wheel assembly and mating spindle components.

Notes for repair: manufactured as a genuine Hitachi replacement, this washer is made to the original fit/tolerance so the disc runs true once reassembled — it’s the exact wheel washer C called out in the CM12Y exploded diagram. Order this genuine Hitachi part to restore correct disc alignment and secure mounting.