The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of five units of the DEOL ASSY ATH LONG and other replacement parts, identified by NSN 7R-1680-016604918-EY. This procurement is critical as the item is flight critical, requiring government source approval prior to contract award, and only previously approved sources will be solicited. Interested vendors must submit detailed technical data and source approval requests alongside their proposals, as failure to provide the necessary documentation will result in disqualification. Proposals must be submitted within 45 days of this notice, and interested parties can contact Katlyn M. Galetto at (215) 697-6549 or via email at katlyn.galetto@navy.mil for further information.