  We introduce the spin-1 $U(1)_X$ gauged field $X$ with $Z_2$ odd dark parity
for evading the current strong constraints for the kinetic mixing. Then, $X$
becomes stable and a candidate for the dark matter. The lowest mass dimension
of interaction is six, and the type is like Higgs portal. Two types of dim-6
operators are introduced. We consider the freeze-out dark matter scenario. With
the limit of null momentum transfer, a parity odd operator is free from the
direct detection constraints. Accordingly, the strong constraints on a parity
even operator indicate turning on this parity odd operator to realize the dark
matter relic density of the universe. With the 1 TeV cut-off scale, our dark
matter of around 400 GeV mass can explain the dark matter relic density and is
allowed from the LUX-ZEPLIN experiment of the direct detection.
