2a first fluid end connection thread class 2.890" overall length 1st end has 0.438-20 unf rh bulkhead threads oxide surface treated coupling assembly unf first fluid end connection thread series
2 2nd end bolt hole quantity first end has a threaded hole through one wall 1/4-20-unc 2b, rh, locsated 5/16 in. from outer edge to center of hole paint surface treated npt inlet thread series
3a all ends thread class 12 all ends thread quantity per inch 1st end bulkhead, 1.062-12 in. un, cl 3a anodize surface treated un all ends thread series
2a 1st end thread class 12 1st end thread quantity per inch truck, forklift, diesel engine driven, 6000 lb.; anthony model mlt 6-2, nsn 3930003271575 cadmium surface treated un 1st end thread series
3a all ends thread class 3.124" overall length 12 all ends thread quantity per inch anodize body surface treated male coupling half un all ends thread series
