This is a market research notice to identify potential manufacturers for a specific regulating valve (NSN 4810016226215) and is not a formal solicitation. Interested parties must submit a completed Market Research Questionnaire to the specified Contract Specialist by March 9th, 2026. The notice lists Eaton Corporation as an approved source for the part. An alternate offeror must provide a complete data package for both the approved and alternate parts for evaluation. No budget or performance location is specified.