Maya Settings (Arnold): Under RenderSettings → Arnold Renderer (Tab) → Motion Blur → Checkboxes (Enable + Instantaneous Shutter)
Maya AOV: motionvector
Nuke Node: VectorBlur-Node
depth
Maya AOV: depth
Nuke Node: Bokeh, zdefocus is not working that great with depth mattes without aliasing
uvw
Maya: Done by an extra Render-Layer with material/shader override for all geometries. Use an aiUtility node as shader in Maya and set it to UV.
Nuke: STMap for remapping an source image as texture
P
Maya: P as position point pass
Nuke: There is a Gizmo called PPMask that allows volume selections based on a coordinate of the P-Pass, around which a volume can be spread.