DLA Weapons Support is conducting market research to identify parties interested in and capable of supporting an Indefinite Quantity Contract for NSN 5342-010461421, COUPLING, CLAMP, GROOVED. Approved sources are Eaton Aeroquip LLC, Voss Industries LLC, and Grimes Aerospace Company, and companies may seek qualification as an Approved Source through the Source Approval Request (SAR) Program. The applicable NAICS code is 332510, and this is not a solicitation or request for proposals; responses are voluntary and the government will not reimburse costs incurred. Interested qualified parties should submit organization information, tailored capability statements, and supporting documentation, including any subcontracting or teaming management structure, by email to Thuy Ho at thuy.ho@dla.mil. The government will use responses to assess market capacity, determine the procurement method, and decide whether to set the requirement aside for Small Business or use Full and Open Competition, with possible multiple awards.