Used on F22. 3a thread class right-hand flush countersunk head style 0.245" grip length 32 thread quantity per inch 5380 double pounds per square inch shear strength s"indicates spline lock recess phosphate surface treated unjf thread series
3a thread class right-hand 0.425" thread length dished hexagon head style 0.240" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.735" thread length dished hexagon head style 1.802" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.425" thread length dished hexagon head style 2.552" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
Used on hh60 helicopter. 3a thread class right-hand 1.690" thread length flat fillister head style 20 thread quantity per inch bolt modified altered item dwg, head changed to 0.250, made from nsn 5305-00-983-8075, pn MS16998-101. cadmium surface treated unf thread series
Used on 1520-01-355-8250; heleicopter, attack. 3a thread class right-hand 0.707" thread length double hexagon extended washer head style 24 thread quantity per inch cadmium surface treated unjf thread series
