The Defense Logistics Agency is seeking sources for the manufacture of NSN 5365-010611849, a RING SEAL, with the only approved source being Curtiss-Wright Electro-Mechanical Corp. Responses to this market research are due by June 22, 2026, and no solicitation currently exists. The estimated requirement ranges from a minimum of 43 to a maximum of 169 units, with unit prices to be established at contract award. No budget amount or performance location is specified in the description. Based on responses, the procurement may be set aside for small businesses or competed through full and open competition.