The Department of Defense, through the Defense Logistics Agency (DLA Land and Maritime), is seeking proposals for the procurement of an overhaul kit for an oxygen regulator, identified by NSN 1660-013863809. This opportunity is a presolicitation for a firm-fixed price Request for Proposal (RFP) aimed at obtaining offers for a single contract with direct delivery, with an estimated delivery timeframe of 250 days after order (ADO). The procurement is restricted to approved sources only, specifically Mission Systems Davenport Inc., and requires engineering source approval for any alternate offers, which must include a complete data package for evaluation. Interested parties should note that copies of the solicitation will be available approximately 15 days after this notice is published on SAM.gov, with the solicitation expected to be accessible on DIBBS around August 7, 2025. For further inquiries, interested vendors can contact Helen Davis at helen.davis@dla.mil.