The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of six transducer subassemblies, identified by NSN 7R-5845-145762319-CB and reference number 44030786AD. The procurement is critical as the item is flight critical, and the government requires source approval prior to contract award, limiting competition to previously approved sources due to the unavailability of adequate technical data for a competitive solicitation. Interested vendors must submit the necessary documentation for source approval along with their proposals, as offers lacking required data will not be considered. For further inquiries, interested parties can contact Sara M. Hojnowski at (215) 697-2198 or via email at SARA.HOJNOWSKI@NAVY.MIL, with a proposal submission deadline of 45 days from the notice publication date.