  We propose a new systematic fibre bundle formulation of nonrelativistic
quantum mechanics. The new form of the theory is equivalent to the usual one
but it is in harmony with the modern trends in theoretical physics and
potentially admits new generalizations in different directions. In it a pure
state of some quantum system is described by a state section (along paths) of a
(Hilbert) fibre bundle. It's evolution is determined through the bundle
(analogue of the) Schr\"odinger equation. Now the dynamical variables and the
density operator are described via bundle morphisms (along paths). The
mentioned quantities are connected by a number of relations derived in this
work.
  This is the fifth closing part of our investigation. We briefly discuss the
observer's role in the theory and different realizations of the space-time
model used as a base space in the bundle approach to quantum mechanics. We
point the exact conditions for the equivalence of Hilbert bundle and Hilbert
space formulations of the theory. A comparison table between the both
description of nonrelativistic quantum mechanics is presented. We discuss some
principal moments of the Hilbert bundle description and show that it is more
general than the Hilbert space one. Different directions for further research
are pointed too.
