Used on 1520-01-471-6743, helicopter, search and rescue. 3a thread class right-hand 0.420" thread length double hexagon w/hole head style 1.625" grip length 32 thread quantity per inch unjf thread series
Used on steam turbine generator assembly. 2a thread class right-hand 1.000" thread length hexagon head style 11 thread quantity per inch specific matl is alloy steel, grade 8 unc thread series
Used on 1520-01-471-6743, helicopter, search and rescue. 3a thread class right-hand 0.420" thread length double hexagon w/hole head style 1.125" grip length 32 thread quantity per inch unjf thread series