This opportunity is for a firm fixed price contract to supply 211 units of a Probe Assembly for the C/KC Stratolifter aircraft, with delivery required 185 days after receipt of order. The only approved source is Aerosonic LLC, and the government intends to solicit and negotiate with them under other than full and open competition. Performance location is not specified, but inspection and acceptance occur at origin with FOB Destination terms. The solicitation is expected to be issued on or about August 4, 2026, and proposals from other interested parties must be submitted within 45 days of this notice's publication to be considered. No budget amount is specified.