The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of two units of the Selector Antenna, identified by NSN 7R-5985-015855316-P8 and reference number 131K837G01. This procurement requires government source approval prior to contract award due to the flight-critical nature of the item, and only sources previously approved by the government will be considered. The selected supplier must provide comprehensive technical data and documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, and offers lacking the necessary information will not be evaluated. Interested parties should contact Connor C. Lewis at (215) 697-4757 or via email at CONNOR.C.LEWIS@NAVY.MIL for further details, as the timeline for source approval may impact the award process.