The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking proposals for the repair and modification of frequency converters, specifically under NSN 7R-5895-015874239-P8, with a quantity of five units required. This procurement is critical as the items are flight critical, necessitating government source approval prior to contract award, and only previously approved sources will be considered for this solicitation. Interested vendors must submit detailed technical data and documentation to demonstrate their capability to produce similar items, as failure to provide the required information will result in disqualification from the award process. For inquiries, interested parties can contact Sarah E. Crompton at (215) 697-5809 or via email at SARAH.CROMPTON@NAVY.MIL.