  We report statistically significant detections of non-radial nongravitational
accelerations based on astrometric data in the photometrically inactive objects
1998 KY$_{26}$, 2005 VL$_1$, 2016 NJ$_{33}$, 2010 VL$_{65}$, 2016 RH$_{120}$,
and 2010 RF$_{12}$. The magnitudes of the nongravitational accelerations are
greater than those typically induced by the Yarkovsky effect and there is no
radiation-based, non-radial effect that can be so large. Therefore, we
hypothesize that the accelerations are driven by outgassing, and calculate
implied H$_2$O production rates for each object. We attempt to reconcile
outgassing induced acceleration with the lack of visible comae or photometric
activity via the absence of surface dust and low levels of gas production.
Although these objects are small and some are rapidly rotating, surface
cohesive forces are stronger than the rotational forces and rapid rotation
alone cannot explain the lack of surface debris. It is possible that surface
dust was removed previously, perhaps via outgassing activity that increased the
rotation rates to their present day value. We calculate dust production rates
of order $\sim10^{-4}$ g s$^{-1}$ in each object assuming that the nuclei are
bare, within the upper limits of dust production from a sample stacked image of
1998 KY$_{26}$ of $\dot{M}_{\rm Dust}<0.2$ g s$^{-1}$. This production
corresponds to brightness variations of order $\sim0.0025\%$, which are
undetectable in extant photometric data. We assess the future observability of
each of these targets, and find that the orbit of 1998 KY$_{26}$ -- which is
also the target for the extended Hayabusa2 mission -- exhibits favorable
viewing geometry before 2025.
