The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the procurement of lighting fixtures and other replacement parts, classified under the NAICS code 336413. This opportunity is a sole source requirement for new manufacture spare parts, necessitating Government Source Approval prior to award, as the Government does not possess sufficient data to contract with other sources. The items are critical for maintaining operational readiness in aircraft systems, and interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure. Proposals must remain valid for a minimum of 120 days, and inquiries can be directed to Katlyn Galetto at Katlyn.G.Galetto.civ@us.navy.mil or by phone at 215-697-6549.