The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the procurement of replacement parts, specifically the NSN 7R-1680-016281390-E7, REF NR 123ELM97300-1, with a quantity of 1 each, under a presolicitation notice. This procurement is critical for maintaining operational readiness and support for miscellaneous aircraft accessories and components. The government intends to solicit and negotiate with only one source under FAR 6.302-1, but all responsible sources are encouraged to express their interest and capability to fulfill the requirement within 45 days of the notice. Interested parties can contact Liem M. Phan at (215) 697-5722 or via email at LIEM.M.PHAN@NAVY.MIL for further details.