The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for a sole source requirement for welded tubes, classified under the NAICS code 336413. The procurement is critical as the government lacks sufficient, accurate, or legible data to contract with sources other than the current approved supplier, necessitating Government Source Approval prior to award. These welded tubes are essential components for aircraft hydraulic, vacuum, and de-icing systems, underscoring their importance in maintaining operational readiness. Interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure, available online, and can direct inquiries to Samantha Freedman at 215-697-6566 or via email at Samantha.M.Freedman.CIV@us.navy.mil.