Used on landing gear. 3a thread class right-hand 0.345" thread length hexagon head style 2.615" grip length 32 thread quantity per inch navy special project cadmium surface treated unjf thread series
Used on main power di,aircraft, hawkeye e-2c. 3a thread class right-hand 0.232" thread length pan head style 40 thread quantity per inch cadmium screw surface treated unjc thread series
2b thread class right-hand 1.380" thread length 13 thread quantity per inch counterbored hole is hexagon shape; counterbore 0.560 in deep; hexagon hole 3x 0.563/0.569 in; flange at counterbored end; flange is 0.09/0.10 in thick; flange is 1.490/1.510 in dia plain unc thread series
2b thread class right-hand 1.380" thread length 13 thread quantity per inch counterbored hole is hexagon shape; counterbore is 0.56 in deep; hexagon hole 3x 0.563/0.569 in; flange at counterbored end; flange 0.09/0.10 in thick; flange 1.490/1.510 in dia plain unc thread series
Used on 2350-01-219-7577. 2a thread class right-hand 2.500" thread length hexagon head style 8 thread quantity per inch zinc surface treated unc thread series
Used on 2330-01-387-5426. 2b thread class right-hand 0.380" thread length 16 thread quantity per inch has no slots tin surface treated slotted unc thread series