This is a firm fixed-price opportunity for the U.S. Coast Guard to supply four specific types of US Navy-style marine duct heaters. All deliveries are required by September 6, 2026, with shipping FOB destination to Baltimore, MD. Vendors must have an active SAM.gov registration and submit quotes for the complete requirement, as a best-value award will consider compliance, timeframe, and price. The heaters must meet detailed specifications, including specific NSNs, part numbers, and stainless steel construction, with any proposed substitutions requiring a specification sheet for evaluation. Invoicing must be processed through IPP, and all materials require military packaging and marking in accordance with MIL-STD-129R.