This opportunity is for the supply of 6 units of a flight-critical, commercial off-the-shelf item, with delivery required FOB origin. Only previously approved sources are being solicited, and any new source must submit detailed approval information with their proposal, as the government cannot delay award for approval. The item requires government source approval prior to contract award due to inadequate technical data for full competition. Interested parties may identify their capability to supply a commercial item within 15 days of this notice. No budget amount or performance location is specified.