The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of eight units of a flight-critical power supply, identified by NSN 1R-6130-016961457-SX and reference number RW100S/5-A. This procurement requires Government source approval prior to contract award, as the item is deemed critical for flight operations, and only previously approved sources will be considered for this solicitation. Interested vendors must submit detailed technical data and documentation demonstrating their capability to produce the item, as outlined in the NAVSUP WSS Source Approval Information Brochures, to be eligible for consideration. For further inquiries, interested parties can contact Connor C. Lewis at (215) 697-4757 or via email at CONNOR.C.LEWIS@NAVY.MIL.