3a thread class right-hand 12 thread quantity per inch fleet ballistic missile quality, as identified by quality control no. poso 909170 cadmium surface treated
Used on 2420-66-148-7692, hmee (high mobility engineer excavator). 2b thread class right-hand 12 thread quantity per inch cadmium or zinc surface treated
3b thread class right-hand 18 thread quantity per inch fleet ballistic missile quality, as identified by quality control number poso 912799 passivate surface treated
3b thread class right-hand 20 thread quantity per inch two 0.046 in. dia lockwire holes spaced 180 degrees apart through flats or nut anodize surface treated
