Used on U-2. 3a thread class right-hand 0.276" thread length pan head style 1.875" grip length 32 thread quantity per inch screw cadmium surface treated unjf thread series
Used on CV-22. 3a thread class right-hand 0.276" thread length flat chamfer head style 1.302" grip length 32 thread quantity per inch screw, pan head, close tolerance lubricated with cetyl alcohol aluminum surface treated unjf thread series
Used on CV-22. 3a thread class right-hand 0.276" thread length flat chamfer head style 1.115" grip length 32 thread quantity per inch screw, pan head, close tolerance passivate surface treated unjc thread series
Used on CV-22. 3a thread class right-hand 0.276" thread length flat chamfer head style 0.490" grip length 32 thread quantity per inch screw, pan head, close tolerance passivate surface treated unjc thread series
Used on boeing model 707. 3a thread class right-hand 0.541" thread length dished hexagon head style 11.865" grip length 20 thread quantity per inch bolt, hex head, 93 ksi shear, short thread, A286, nonlocking manufacturer's part number BACB30NF7-19 replaced by BACB30LJ7-19, reference chapter 54-1, figure cadmium surface treated unjf thread series