The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of compressed gas cylinders, identified by NSN 7R-8120-016571545-P8, with a quantity of 100 units required. This procurement is critical as the item is flight critical, necessitating Government source approval prior to contract award, and only previously approved sources will be solicited. Interested vendors must submit detailed technical data and source approval information as outlined in the NAVSUP WSS Source Approval Information Brochures, with proposals due within 45 days of this notice. For further inquiries, potential bidders can contact Timika Nicholson at (215) 697-2582 or via email at TIMIKA.D.NICHOLSON.CIV@US.NAVY.MIL.