USNS HENRY J. KAISER KJZ 282 Coupling Parts. This is a sole source request for quote from Marine Propulsion Inc. as the sole designated company authorized to resell by the manufacturer. See attached s... USNS HENRY J. KAISER KJZ 282 Coupling Parts. This is a sole source request for quote from Marine Propulsion Inc. as the sole designated company authorized to resell by the manufacturer. See attached sole source justification.