The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of the SATCOM/LOS UHF filter, identified by NSN 7R-5895-016187999-P8, with a quantity of 23 units required. This procurement is critical as the item is flight critical, and the government requires source approval prior to contract award, limiting competition to previously approved sources only. Interested vendors must submit detailed technical data and source approval documentation with their proposals, as offers lacking this information will not be considered. For inquiries, contact Kelly A. Gipson at (215) 697-4787 or via email at KELLY.A.GIPSON1@NAVY.MIL, with proposals due within 45 days of the notice publication.