Quantity of 4 units, with delivery on an FOB origin basis. This commercial/nondevelopmental off-the-shelf item requires Government source approval, so only previously approved sources have been solicited; new sources must submit the required source approval data or their offers will not be considered. If you are not yet approved, the time needed for approval typically prevents a delayed award for this requirement. Interested parties may identify their interest and capability to supply this as a commercial item within 15 days of this notice.