The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 11 units of the ILS GNSS GLS MULTI, identified by NSN 7R-1680-016276877-P8 and reference number 822-1821-332. This procurement involves a commercial/non-developmental/off-the-shelf item that is critical for flight operations, 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. For further inquiries, interested parties can contact Shannon R. Menickella at (215) 697-2198 or via email at SHANNON.R.MCNEILL.CIV@US.NAVY.MIL.