The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking to procure two units of a flight-critical waveguide component, identified by NSN 1R-5985-015817970-E7. The procurement is restricted to approved sources due to the lack of available technical data and the necessity for government source approval prior to contract award, as the item is essential for operational readiness. Interested vendors must submit a proposal along with the required source approval documentation, as offers that do not meet these criteria will not be considered. For further inquiries, Danielle Diciacco can be contacted at (215) 697-5970 or via email at DANIELLE.DICIACCO.CIV@US.NAVY.MIL, with a proposal submission deadline of 45 days from the notice publication date.