This a replacement O.S. Engines Propeller Nut, and ...
is intended for use with O.S. engines that have a 1/4" crank thread. This Part Is Used With The Following O.S. Engines 50 SX 46 VX 46 FX 46 LA 40 FX 40 LA FS-40 32 SX ...
This is a replacement O.S. Engines 40-240 Front ...
Engine Bearing, and is intended for use with the O.S. 50SX-H Helicopter Engine. Dimensions: Inner Diameter: 9.5mm (.375") Outer Diameter: 22.2mm (.875") Width: 7.1mm (.280") This Part Is Compatible With 40 SF 40 SF ...