An optical port apparatus includes a housing having oppositely disposed
first and second housing surfaces and a housing body extending
therebetween. A housing aperture extends about a central axis of the
housing body. A groove surrounds the housing aperture. The groove extends
partially through the housing body and has a bottom groove surface spaced
from the second housing surface by a groove side wall. A shelf is located
between the groove and the housing aperture. A gasket is located in the
groove adjacent the bottom groove surface. The gasket surrounds the
housing aperture. A window is located across the housing aperture in
contact with the shelf. An elastomeric adhesive is located in the groove
between the groove side wall and at least one of the window and the
gasket. A bezel is fastened to the second housing surface adjacent the
groove.