Copper Gasket Replacement for OS FSa-110-P - Hatroi HA244  [HA244]

Copper sealing washer suited to OS FSa-110-P service

This Hatroi HA244 copper gasket is an RC-scale replacement part specified for use with the #731 OS FSa-110-P assembly. The component is a solid copper sealing washer intended to restore a clean metal-to-metal seal where the original gasket has worn or been removed during engine service.

Fitment is limited to the referenced model, so confirm alignment visually before fitting. When replacing the gasket, remove old material from both mating surfaces, seat the gasket flat, and tighten the head fasteners evenly in a cross pattern to prevent distortion. Use appropriate hand tools and avoid excessive torque to protect the threaded parts commonly found on RC engine heads.

For installation contexts the copper gasket restores sealing that supports steady compression and predictable starting on nitro RC engines. It is a basic spare for rebuilds and quick service checks without changing core engine geometry.