The Government intends to solicit and negotiate with only one source for this flight-critical item, which requires source approval prior to award. Only previously approved sources have been solicited; new sources must submit all required source approval data, but approval cannot delay award. If you are not an approved source and fail to provide the required brochure documentation, your offer will not be considered. This notice is not a request for competitive proposals, though all responsible sources may express interest. Award will be made only if the offeror and product meet qualification requirements at the time of award.