3a single pressure connection thread class 2.600" overall length 0.438" single connection outside diameter cylindrical unf single pressure connection thread series
2b thread class right-hand 1.100" overall length 1.100" overall width 40 thread quantity per inch 0.526 in. cutout on one side chromate surface treated square shape unc thread series
3b thread class right-hand 2.312" overall length 2.312" overall width 32 thread quantity per inch 1.188 in. cutout on one side chromate surface treated square shape unc thread series