O.S. Engine OS29701310 SS-10.5 GT55 Replacement O-Ring for RC Engine Sealing  [OS29701310]

Purpose and use of the O-ring

The O.S. Engine O-ring bearing model number OS29701310 and the SS-10.5 GT55 code serves as a sealing element within engine assemblies to limit leakage of fuel and lubricants. It is supplied for use in RC engine maintenance and repairs.

When installing, inspect both the shaft and housing for contamination or damage, place the O-ring carefully without stretching it beyond its limits, and check for leaks under non-running conditions before resuming full operation. Avoid cleaning agents that could harm the material, and keep stored parts in a shaded, cool location.

For service planning, treat the O-ring as a replaceable consumable: check it during engine teardown, replace it if distorted or damaged, and carry spare rings to reduce downtime during track sessions. Ensure replacement rings match the original groove geometry.