Used on w/s:oliver perry class ffg; kidd class ddg, engine, aircraft f110-ge-400; ticonderoga class cg (47); spruance class dd (963); truck, cargo, dropside 2 1/2-ton 6x6 w/e; helicopter, mh-53e; supply class aoe; aircraft, t-39; fans. 2b thread class right-hand 16 thread quantity per inch cadmium surface treated
2b thread class right-hand 20 thread quantity per inch 3 holes 0.045 in. min, 0.051 in. max, drilled through alternate corners anodize nut surface treated
