The low rotational features of the (0,0) F(2)Sigma(+)<--X(2)Sigma(+) band system of a supersonic molecular beam of RuN have been recorded at high spectral resolution via laser induced fluorescence spectroscopy. The electric field induced dependence of the P-11(1) and (R)Q(21)(0) branch features of the (RuN)-Ru-104 isotopomer were analyzed to produce permanent electric dipole moments, mu, of 1.89(5) and 1.07(5) D for the X(2)Sigma(+) and F(2)Sigma(+) states, respectively. The splitting in the field free spectrum of the (RuN)-Ru-101 isotopomer was analyzed to produce a Fermi contact, b(F)(X(2)Sigma(+)), parameter of -0.0349(4) cm(-1). The results are interpreted using the electronic structure predictions for the F(2)Sigma(+) and X(2)Sigma(+) states given by Ram et al. [J. Chem. Phys. 109, 6329 (1998)] and compared with RuC and FeC. (C) 2003 American Institute of Physics.