The requirement is for 9 units of NSN 1R-6625-015427487-TX, a commercial off-the-shelf item with delivery FOB origin. This flight-critical item requires Government source approval prior to contract award, and only previously approved sources have been solicited. New sources must submit the detailed data from the NAVSUP WSS Source Approval Information Brochure with their proposal, and offers failing to do so will not be considered. The source approval process is typically too lengthy to delay award, so interested parties should have prior approval or submit the required data promptly. Award will only be made if the offeror, product, or manufacturer meets qualification requirements at the time of award.