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Restriction on the neutron-antineutron oscillation time in vacuum is obtainedfrom latest SNO data on the deuteron stability, $\tau_D\,>\,3.01^.10^{31}$years. Calculation performed within the quantum field theory based diagramtechnique reproduces satisfactorily results of the potential approachpreviously developed. The dependence of the obtained restriction on the totalspin of the annihilating $N\bar N$ system and the deuteron wave functionmodifications is discussed.

Restriction on the Neutron-Antineutron Oscillations from the SNO Data on the Deuteron Stability