The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of night vision viewers, identified by NSN 7R-5855-015901553-QE, with a quantity of 138 units required. This procurement necessitates engineering source approval to ensure the quality of the parts, as the items are flight critical and require unique design capabilities and manufacturing knowledge from approved sources. Interested vendors must submit their proposals along with the necessary documentation for source approval, as the government intends to negotiate with only one source under FAR 6.302-1, with a deadline for submissions within 45 days of the notice. For further inquiries, interested parties can contact Hayden Young at (215) 697-2928 or via email at HAYDEN.J.YOUNG3.CIV@US.NAVY.MIL.