The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the procurement of an electronic switch, NSN 0R-5895-017256394-RQ, which is critical for flight operations. This opportunity requires that all potential suppliers obtain Government source approval prior to contract award, as the item is deemed flight critical and the technical data available does not support full and open competition. Interested vendors must submit comprehensive documentation as outlined in the NAVSUP WSS Source Approval Information Brochures, and failure to provide the necessary data will result in disqualification from the award process. For further inquiries, interested parties can contact Kathryn S. Hull at (215) 697-6646 or via email at KATHRYN.S.HULL.CIV@US.NAVY.MIL.