The procurement is for 25 units of a solenoid valve (NSN 7H-4810-015101451) with delivery to DLA Distribution in New Cumberland, PA. The government lacks the data or rights to repair the part from other sources, and reverse engineering is uneconomical, so it intends to solicit and negotiate with only one source under FAR 6.302-1. Interested parties may identify their interest and capability, with proposals considered if received within 45 days (or 30 days if an existing Basic Ordering Agreement applies) from publication. This notice is not a request for competitive proposals, and the government retains sole discretion on whether to compete based on responses. Award will require the offeror, product, or manufacturer to meet qualification requirements at the time of award in accordance with FAR clause 52.209-1.