The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of six aircraft ground servicing equipment items, identified by NSN 1R-1730-010134157-LC and reference number 3401258-3. The procurement requires Government source approval prior to contract award due to the flight-critical nature of the items, and only previously approved sources will be solicited; new sources must submit detailed technical data and experience documentation with their proposals. Interested parties are encouraged to review the NAVSUP WSS Source Approval Information Brochures and submit their proposals within 45 days of this notice, as the Government intends to negotiate with only one source under FAR 6.302-1. For further inquiries, Chad M. Fichter can be contacted at (215) 697-2782 or via email at CHAD.FICHTER@NAVY.MIL.