O.S. Engine OS44925300 Silencer Assemble Screw M4X110 for F-5040 FSa-110 muffler mounting part  [OS44925300]

Silencer assemble screw details

This O.S. Engine OS44925300 silencer assemble screw is an RC-scale mounting fastener specified with the M4X110 marking and intended for use with silencers listed as F-5040 and FSa-110. It functions as the mechanical link between cylinder head outlet and the muffler body, keeping exhaust components aligned under vibration typical of nitro RC models.

The text focuses on practical fit and installation: check that the screw threads engage cleanly with the silencer insert, avoid cross-threading, and maintain correct alignment before final tightening. Because the part is designed for RC muffler mounts, users should secure the assembly with appropriate torque and inspect for leakage or looseness after initial runs.

In setup and tuning, this fastener helps preserve exhaust positioning which can affect backpressure and engine consistency on RC nitro setups; secure, straight mounting reduces stress on the silencer and on adjacent components such as the manifold and mounting studs.