Makita JM23100104 — Genuine Makita flat washer (listed as "Flat Washer 5"). This is the small steel flat washer used with M5 fasteners on several Makita slide/compound mitre saw assemblies; it spreads clamping load, protects mating surfaces and keeps guard/guide components sitting true. Fits confirmed for Makita models LS1018L and the LS0815 series (LS0815F / LS0815FL) in the official parts lists.
Size note: the part is a 5 mm-class flat washer (for M5 bolts). Standard metric M5 flat-washer dimensions are approximately 5.3 mm inner diameter, ~10 mm outer diameter and ~1.0 mm thick (DIN/ISO standard metric flat-washer sizing), which is the form typically used on these Makita saws—check your saw’s exploded parts diagram to confirm exact washer position before installing.
Sold as a single, genuine Makita replacement part (JM23100104). If a worn or missing washer is causing looseness, binding or misalignment of the guard or blade components on your saw, this genuine Makita washer restores the correct spacing and clamping surface.
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