Hirobo HI2506028 Flat Spacer Washer 3.9 x 5.8 x 0.1 mm for Helicopter Parts  [HI2506028]

Flat spacer washer for scale helicopters

This Hirobo HI2506028 flat washer is intended as a thin spacer and protector for model helicopter assemblies. The specified size, 3.9 x 5.8 x 0.1 mm, makes it appropriate for fine spacing and for providing a seating surface between fasteners and linkage or bearing components.

By distributing clamp forces from small screws and nuts, the washer helps protect surrounding materials and keeps linkages and bearing retainers seated correctly. It is commonly used under screw heads or nuts that secure control links, rotor components, or housing covers where minimal stack height is required.

To fit, place the washer so the central hole matches the fastener shaft and locate it between the head and mating surface or under the nut as needed. Its 0.1 mm thickness is intended for minor adjustments and contact protection, rather than primary structural support.