Used on stern diving gear follow up mech; la class ssn(688). 2a stud thread thread class right-hand nut thread 0.220" nut thread thread length 1.440" overall length 16 stud thread thread quantity per inch insert stepped m nut thread thread series
3a thread class right-hand 0.842" thread length hexagon head style 6.062" grip length 20 thread quantity per inch passivate surface treated unf thread series
Used on E-3A. 3a thread class right-hand 0.528" thread length hexagon head style 2.812" grip length 20 thread quantity per inch cadmium surface treated unjf thread series