This 21 pieces pack was created for those 3D artists that are looking for knobs and switches to add to their jet's cockpit, although there are a few that could work well in other environments. They were created in Blender 2.78c using mostly quads in Cycles.

All the knobs and switches are rigged and ready to animate as you wish, although they are already animated using keyframes. The materials are my take on PBR.

The most complex mesh tops at 1k verts, 1.8k edges and 1.1k faces