... , Barrel Nipple, Welding Nipple, Hex. Nipple, Reducer Hex. Nipple, Neg. Bushing, Hex. Welding Nipple, Socket banded, Reducer Socket Banded, Socket O ... Nipple, Hex. Head Cap, Cap, Hex. Plug, Square Plug, Hex. Bushing, Hex. Nut, Threaded Nipple Rating: 150lbs ThreadsANSI B1.20.1 ...