The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of a coupler transmission, identified by NSN 1R-5985-017194591-P8, with a quantity of three units required for delivery FOB origin. This item is classified under the category of antennas, waveguides, and related equipment, and is deemed flight critical, necessitating government source approval prior to contract award. Interested vendors must provide comprehensive documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, as offers lacking the required data will not be considered. Proposals must be submitted within 45 days of this notice, and inquiries can be directed to Danielle M. Junod at (215) 697-1138 or via email at DANIELLE.M.JUNOD.CIV@US.NAVY.MIL.