This is a market research notice seeking potential manufacturers for a specific safety relief valve (NSN 4820-01-493-7731) and is not a formal solicitation. Interested parties must submit a completed Market Research Questionnaire to the specified Contract Specialist. The information submission deadline is March 2, 2026. An approved source for the valve is listed, and any alternate offeror must provide a complete technical data package for evaluation. No budget, performance location, or bid/submission timelines are specified.