The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the procurement of 30 units of the Stiffener, Bellows, A (NSN 1R-1680-015046746-EY, REF NR RLG0514-02). This item is classified as flight critical, necessitating government source approval prior to contract award, as the technical data available does not support full and open competition. Interested vendors must provide comprehensive documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, including evidence of prior production experience or a cover letter for any pending source approval requests. Proposals that do not meet the submission requirements will not be considered, and the procurement process may proceed based on fleet support needs if source approval cannot be processed in time. For further inquiries, interested parties can contact Svitlana Shvets at (215) 697-6278 or via email at svitlana.shvets@navy.mil.