Used on lock,aircraft ground safety-shock strut for c-17 acft. 3a thread class right-hand 1.300" thread length 28 thread quantity per inch two grooves 0.046/0.062 in. wd x 0.050 in. nom deep x 1.380 in. nom lg along one side of both ends round bend unjf thread series
2a thread class right-hand 2.500" thread length 10 thread quantity per inch two holes on threaded ends, 0.172 in. dia; 0.500 in. from end round bend unc thread series
3a thread class right-hand 1.250" thread length 18 thread quantity per inch navy special project phosphate manganese or phosphate zinc surface treated round bend unc thread series
2a thread class right-hand 1.000" thread length 20 thread quantity per inch furnished with hex nuts 2.250in. , threads 20per in. zinc surface treated round bend unc thread series
2a thread class right-hand 1.250" thread length 20 thread quantity per inch furnished with hex nuts 2.250in. diameter with 20 thd per inch zinc surface treated round bend unc thread series
