This requirement is for 2,500 feet of a commercial, non-developmental, off-the-shelf item (NSN 1R-6015-017215618-P8), with delivery FOB origin. Because the item is flight critical, government source approval is required before contract award, and only previously approved sources have been solicited. If you are not an approved source, you must submit all required source approval information with your proposal, or your offer will not be considered. Note that new source approval cannot be processed in time, so award may proceed based on fleet support needs without waiting for that approval. The acquisition may also be subject to Free Trade Agreements and other trade agreement clauses, depending on the solicitation.