Used on actuator rotary hydraulic. 2a thread class right-hand 1.375" thread length hexagon head style 12 thread quantity per inch navy special project unc thread series
2a thread class right-hand 0.375" thread length hexagon head style 16 thread quantity per inch interpret therads per fed-std-H28/2 zinc surface treated unc thread series
2a thread class right-hand 1.500" thread length hexagon head style 11CQBCJP150000 thread quantity per inch zinc or chromate surface treated unc thread series
Used on valves astn x;nimitz class cvn. 2a thread class right-hand 0.625" thread length hexagon head style 16 thread quantity per inch unc thread series