3a 2nd end thread class 14 2nd end thread quantity per inch flaress end seat angle dark-gray plastic coated threaded external rigid, threaded internal swivel unjf 1st end thread series
3b 1st end thread class 20 1st end thread quantity per inch polytetrafluoroethylene coat to extend distance of 0.270 in. into fitting bore on second end lubricant dry film surface treated swaged unjs 1st end thread series