The Department of Defense, through the NAVSUP Weapon Systems Support office, is seeking qualified sources for the procurement of air motor and brake components, specifically NSN 7R-5340-014788161-SX, under a presolicitation notice. The contract involves the repair or modification of flight-critical items, with a requirement for Government source approval prior to award, as the technical data available does not support full and open competition. Interested vendors must provide detailed documentation as outlined in the NAVSUP Source Approval Information Brochures, and failure to submit the required data will result in disqualification from the award process. For further inquiries, interested parties can contact Sarah E. Crompton at (215) 697-5809 or via email at SARAH.CROMPTON@NAVY.MIL.