3a thread class right-hand 1.375" thread length flat chamfer head style 0.061" hole diameter 20 thread quantity per inch cadmium surface treated unrf thread series
1.973" inside diameter 2.289" outside diameter 0.029" major thickness special ring style 221000.0 pounds per square inch tensile strength rating cadmium surface treated
Used on an/alq-135c/d. 2a thread class 32 thread quantity per inch extension past threaded end 0.180in. long 0.125 in. wide, hole 0.068 in. dia. unc thread series