3b thread class right-hand 3.5050" overall length 0.3120" bore diameter 24 thread quantity per inch lube fitting in 2 places chromium inner member surface treated ball type unf thread series
3a thread class right-hand 2.9375" overall length 0.3120" bore diameter 24 thread quantity per inch GNAS559 keyway in shank chromium inner member surface treated ball type unf thread series
3a thread class right-hand 3.3750" overall length 0.6245" bore diameter 16 thread quantity per inch chromium inner member surface treated ball type unf thread series