3a thread class right-hand 0.573" thread length spline drive shear head head style 3.740" grip length 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.734" thread length dished hexagon head style 2.240" grip length 14 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.780" thread length flat chamfer head style 0.093" hole diameter 24 thread quantity per inch countersunk hole in head, 0.484 in. min 0.516 in. max dia counterbore unthreaded unjf thread series
Used on afterbody section,torpedo mk50. 3a thread class right-hand 0.360" thread length hexagon extended washer head style 28 thread quantity per inch passivate surface treated unf thread series
Used on ch-47d,helicopter,cargo-trns.. 3a thread class right-hand 1.947" thread length spline extended washer head style 1.615" grip length 12 thread quantity per inch cadmium surface treated unjf thread series
18.560" inside diameter 18.950" outside diameter 0.058" major thickness angular cap ring style microinch finish-32.0 all surfaces except inside dia. which is 90.0 microinch finish
