3b thread class right-hand 3.3750" overall length 0.4995" bore diameter 20 thread quantity per inch keyway in shank; surface finish on ball passivate per mil-s-5002 optional cadmium rod end body surface treated ball type unjf thread series
3a thread class right-hand 3.3750" overall length 0.6245" bore diameter 18 thread quantity per inch chromium external inner member surface treated ball type unf thread series