28--BLADE

Description: The notice concerns a proposed procurement of 659 units of a flight-critical turbine-engine component, NSN 0R-2840-017091528-B8 (reference 5145T39P03), with delivery FOB origin. The agency says that only previously approved sources have been solicited because it lacks sufficient technical data, though other responsible sources may submit capability information or proposals with the required source-approval data. This is a pre-solicitation notice rather than a request for competitive proposals, but proposals submitted within the stated response period will be considered.