Used on E-3A. 3a thread class right-hand 0.470" thread length double hexagon head style 1.428" grip length 24 thread quantity per inch bolt aluminum surface treated unjf thread series
2a thread class right-hand 1.750" thread length hexagon head style 10 thread quantity per inch material of screw is a medium carbon steel, grade 5 zinc surface treated unc thread series
Used on seawolf class ssn. 0.685" inside diameter 0.807" outside diameter 0.061" major thickness special flat ring style material per comp 316; ring thickness .04/.044 in; shaft dia. 0.750 in; groove dia. 0.701/0.707 in; groove width 0.046/0.049 in passivate surface treated
Used on an/arc222 sin. 3a thread class right-hand 0.250" thread length flat fillister head style 40 thread quantity per inch screw, cap, socket head materila is nylon (zytel 101) unc thread series