2a thread class right-hand 0.403" thread length pan no. 2 head style 40 thread quantity per inch supplied w/split helical ring washer 0.025 in. to 0.031 in. thk, chromate treated cadmium plated steel cadmium surface treated unc thread series
3a thread class right-hand 0.454" thread length flat countersunk head style 24 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.254" thread length knurled no. 6 head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
3a thread class right-hand 0.533" thread length pan head style 32 thread quantity per inch cadmium screw surface treated fleet ballistic missile quality as identified by quality control no.POSO900060 unjf thread series
1.850" inside diameter 0.062" major thickness e ring style fleet ballistic missile quality, as identified by quality control no. poso 900162 cadmium surface treated
