The government requires quantity 13 EA of part reference CA55123-001 (NSN 7R-1680-015616395-CB), with delivery FOB origin. This part requires engineering source approval by the design control activity to maintain quality. Approved source(s) possess unique design capability, engineering skills, and manufacturing/repair knowledge, and they retain data rights or technical data not economically available to the government but essential to part quality. An alternate source must qualify under the design control activity’s procedures, as approved by the cognizant Government engineering activity. The qualification procedures must be approved by the Government engineering activity having jurisdiction over the part in its intended application.