The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 19 units of a flight-critical switch assembly, identified by NSN 1R-5930-016791405-ZR and reference number 10088519-1. This procurement requires engineering source approval due to the unique design capabilities and manufacturing knowledge necessary to maintain the quality of the part, which must be sourced from previously approved suppliers. Interested vendors must submit detailed qualifications and source approval documentation, as proposals lacking the required information will not be considered. For inquiries, contact Jake Kucowski at (215) 679-2012 or via email at JAKE.KUCOWSKI.CIV@US.NAVY.MIL, with proposals due within 45 days of the notice publication.