Used on w/s: aircraft, awacs, e-3a; communications central, an/tsc-120; aircraft, stratolifter c-135; airborne mobile dir air spt ctl (2id),(02mjul83)(an/uyq-3a); aircraft, hercules c-130f; radar set, lightweight 3d (an/tps-59); ground mobile force satellite comm term (an/tsc-93a); pads, an/usq-70; lav, anti-tank. 2b thread class right-hand 20 thread quantity per inch passivate surface treated