The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure 194 units of a night vision adapter as part of a presolicitation for repair and modification services. This item, identified by NSN 7R-5855-016147970-QE, is classified as a Critical Application Item (CAI), which restricts the procurement to COLLINS ELBIT VISION SYSTEM, LLC, the sole approved source capable of providing the necessary technical data for repair, testing, and certification. Interested parties must note that only proposals from approved sources will be considered, and those not previously approved must submit detailed qualification information along with their proposals by the deadline, which is 45 days from the notice publication. For further inquiries, interested vendors can contact Hayden Young at (215) 697-2928 or via email at HAYDEN.J.YOUNG3.CIV@US.NAVY.MIL.