Door Hinges Question Left and Right interchangeable?

[Luma]

There is a part the mounts to the door hinge that holds the spring that keeps the door opened?

I have the hinge part thats part of the hinge body. I'm looking for the items that move with the spring

when you open a door. Part books show it as included in the hinge assembly. Are left and right hinges

swapable? I've had 10 Avanti's and only a few have had true left door hinges/ w spring.

Thanks

LUMA