Solicitation from the Department of Defense, specifically the Department of the Navy, is being issued for the procurement of a window heat control item. This item is typically used for controlling the heat in windows. The notice indicates that the procurement is being done as a sole source to Boeing 81205, with the anticipation of receiving a single acceptable offer from this source. Other capable firms may express interest in the requirement by contacting the government point of contact mentioned in the notice. The notice also mentions that all contractual documents related to this procurement are considered "issued" by the government when they are deposited in the mail, transmitted by facsimile, or sent by other electronic commerce methods. Early and incremental deliveries are accepted and preferred.