YS Engine YSS1015 Propeller Nut 50ST - propeller fastening spare for RC models  [YSS1015]

Propeller nut for RC use

This YS Engine propeller nut is a compact spare intended for RC-scale propeller assemblies. It serves the basic mechanical role of holding a propeller onto an engine shaft or spinner assembly, providing a reliable clamping point without altering engine tuning or drive characteristics.

Installation is straightforward and meant for common hobby practice: remove any locking washers, slide the propeller onto the shaft, and secure the nut by hand before final tightening with the appropriate wrench. Avoid over-tightening; use firm, controlled turns and check that the propeller runs true before flight.

Maintenance is limited to routine inspection: check the nut for visible wear, thread damage, or loosening before each session and re-torque after the first run following replacement. The part is intended as a simple replacement or spare during field repairs and bench setup.