This is a restricted solicitation for commercial items, with a firm-fixed-price purchase order anticipated to be awarded on a sole source basis to Leonardo SPA. The requirement covers one SATCOM HPA mount and four modules for U.S. Coast Guard HC-27 aircraft. Each item must have clear traceability to its specified Original Equipment Manufacturer, and the contractor must furnish a Certificate of Conformance. Only quotations with F.O.B. Destination or F.O.B. Origin shipping terms will be accepted; other Incoterms are excluded. The applicable NAICS code is 336413 with a small business size standard of 1,250 employees.