Steering assembly

[Turmelator]

Hello all

I need help finding a piece of steeringwheel I can not find anywhere. For those who have already removed it, the steering wheel fit on a serrated aluminum piece. In the diagram, all components are present except this alluminum piece that holds the steeringwheel.
Anyone know where can I find this ?

Maybe this piece come with the steeringwheel ??

Thanks a lot

 

[Gym]

@Turmelator it looks like a spline bushing. I think you would be correct in thinking it is part of the steering wheel or another part of the helm if it's not listed separately. There are marine salvage sites that may help. There are also members that have changed out their wheel that may sell the old one.