This opportunity covers two units of NSN 7R-1680-015855106-P8, a commercial off-the-shelf item, with delivery FOB origin. The item is flight critical and requires Government source approval prior to award, so only previously approved sources have been solicited. New sources must submit all required Source Approval Brochure data with their proposal, or their offer will not be considered. If a new source approval cannot be processed in time, the Government may proceed with award based on fleet support needs.