The U.S. Coast Guard Surface Forces Logistics Center is seeking quotes for a rigid shaft coupling (NSN 3010-01-577-2001) used on 270 WMEC propulsion and tail shafts, with a quantity of three units. Standard commercial packaging is not acceptable; offers must meet the Coast Guard's specific packaging requirements or they will be rejected. This is a combined synopsis and solicitation, and the resulting award will be a firm-fixed-price contract on an all-or-none basis to the lowest-priced technically acceptable offeror. Offerors must be registered in SAM, have a valid DUNS number, provide their TIN, and submit the required representations and certifications. The procurement is subject to various FAR, HSAR, and CGAP clauses, including prohibitions on inverted domestic corporations and Buy American provisions.