The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of three units of a flight-critical digital frequency discriminator, identified by NSN 7R-5999-015492395-CB and reference number 232A310-1. Due to the critical nature of this item, the procurement requires Government source approval prior to contract award, as the necessary technical data for competitive solicitation is not available. Interested vendors must provide comprehensive documentation as outlined in the NAVSUP WSS Source Approval Information Brochure, and offers lacking the required data will not be considered. For further inquiries, interested parties can contact Dana L. Scott at dana.scott@navy.mil, with the understanding that the procurement process is not utilizing FAR Part 12 policies for commercial items.