The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the integrated standby repair and modification of flight instruments, specifically NSN 7R-6610-131217919-P8, with a quantity of 10 units. This procurement requires engineering source approval to ensure the quality of the parts, as the items are flight critical and must be sourced from approved suppliers with unique design capabilities and manufacturing knowledge. Interested vendors must submit their proposals along with necessary source approval documentation within 45 days of this presolicitation notice, with the understanding that the government may proceed with award based on fleet support needs if new source approvals cannot be processed in time. For further inquiries, contact Kelly A. Gipson at (215) 697-4787 or via email at KELLY.A.GIPSON1@NAVY.MIL.