The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the procurement of electrical limiters and other replacement parts, specifically identified by NSN 1R-5895-016984263-RQ. This presolicitation notice indicates that the item is flight critical and requires Government source approval prior to contract award, meaning only previously approved sources will be considered for this procurement. Interested vendors must provide detailed technical data and documentation as outlined in the NAVSUP Source Approval Information Brochures, as failure to do so will result in disqualification from the award process. For further inquiries, potential bidders can contact Nadia Govorushko at (215) 697-2813 or via email at NADIA.GOVORUSHKO@NAVY.MIL.