Used on 5410-01-441-8054 chemical biological protective shelter (cbps). 3a thread class right-hand 0.880" thread length 24 thread quantity per inch ring, lifting working load: 1250 lbs in any direction. zinc or cadmium surface treated round, closed w/shoulder unf thread series
Used on 5340-01-487-7760; tank,liquid storage. 2a thread class right-hand 1.250" thread length hexagon head style hex head cap screw - self-sealing 18-8 stainless steel silicone rubber o-ring under the head forms a tight seal as the screw is fastened. the o-ring has a temp. range of -160 deg. f to +500 deg. f
Used on c-17a aircraft. 3a thread class straight pan head style 0.370" grip length 95000 single pounds per square inch shear strength aluminum surface treated unjf thread series
Used on U-2. 3a thread class right-hand 0.316" thread length flat countersunk head style 0.875" grip length 28 thread quantity per inch flat 100 deg head, close tolerance, short thread, offset cruciform, 160ksi passivate surface treated unjf thread series
