3a thread class right-hand 3.9200" overall length 0.5000" bore diameter 18 thread quantity per inch flush type lubricant fitting cadmium all external/exposed metal surfaces surface treated double row, concave rollers unjf thread series
Used on motorized road grader,westinghouse air brake co construction equipment div model 550. 2.8125" overall length 17c solid, plain, no outside flanges