WW-U-516B, FEDERAL SPECIFICATION: UNIONS, BRASS OR BRONZE, THREADED PIPE CONNECTIONS AND SOLDER-JOINT TUBE CONNECTIONS (29 AUG 1974) [S/S BY A-A-59617]

WW-U-516B, FEDERAL SPECIFICATION: UNIONS, BRASS OR BRONZE, THREADED PIPE CONNECTIONS AND SOLDER-JOINT TUBE CONNECTIONS (29 AUG 1974) [S/S BY A-A-59617]., This specification covers bronze or brass union with threaded pipe or solder-joint tube connections for joining nonferrous pipe and tubing.