1/2 Inch Pipe Nipple, API 5L GR.B, SCH 80, ANSI B36.10, NPT
Long Pattern Pipe Nipple, ASME B16.11, A403 TP316L, 1/2 Inch
ANSI B36.10 Pipe Nipple, 1/2 Inch, ASTM A106 GR.B, SCH 160