Used on los angeles class ssn (688), valve divider. right-hand 24 thread quantity per inch locknut shall be marked with 6 symmetrically spaced identical symbols onthe chamfered surface zinc surface treated
Used on f-22 aircraft. 3b thread class right-hand 28 thread quantity per inch nut, self-locking, plate-rivet holes 0.995 min to 1.005 max passivate clip surface treated