This is a market research Sources Sought notice for the production and maintenance of Low Profile Masts for VIRGINIA, COLUMBIA, and SSGN Class submarines. The contemplated contract is a single-award IDIQ with a five-year ordering period, and the primary place of performance is the United States. Interested parties must request classified performance specifications by submitting a signed Terms of Use Agreement via email by 4:00 pm EST on 13 FEB 2026. To express interest, companies must then submit a White Paper addressing technical capabilities and maintenance philosophy via email by the same deadline. No budget information is specified in this notice.