2a first fluid end connection thread class 4.257" overall length one end bulk head fitting on one end anodize surface treated coupling assembly unf first fluid end connection thread series
2a first fluid end connection thread class 5.391" overall length anodize surface treated coupling assembly unf first fluid end connection thread series
3a all ends thread class 2.529" overall length 12 first quick disconnect end thread quantity per inch grumman aircraft corp, a-10 aircraft model anodize body surface treated male coupling half unj all ends thread series
Used on aircraft application. 3a all ends thread class 2.112" overall length 6 bolt hole quantity 16 all ends thread quantity per inch anodize body surface treated male coupling half uns all ends thread series
3b internal thread class right-hand internal cap drilled for attachment of safety chain anodize surface treated cap, tube, flared unjf internal thread series
Used on engine, turbojet, acft. four 0.120 to 0.130 in. dia holes equally spaced on shank of first end; material: steel comp 1010 cylindrical unf 1st end thread series
