The Department of Defense, specifically the Department of the Navy, is soliciting a flexible coupling. This coupling is typically used in shipboard systems and is crucial for the proper functioning of the system. The material must be inspected and refurbished if necessary, with proper identification markings. The material must also meet specific requirements for chemical and mechanical analysis. The contractor must maintain a quality system in accordance with ISO-9001 or MIL-I-45208, and all inspections and tests must be documented. Material traceability and certification are required, and all material must be marked with traceability markings. The contractor must also perform receiving inspection and report any nonconforming products to the responsible sub-tier supplier. Packaging must be in accordance with MIL-STD 2073.