Used on helicopter, search and rescue, hh-60h;spruance class dd (963);helicopter, carrier based asw, sh-60f;helicopter, advance attack, ah-1w;helicopter, uscg search and rescue, hh-60j;forrestal class cv;milstar system;radio terminal, digital troposcatter (an/trc-170);ticonderoga class cg (47);helicopter, mh-53e;tarawa class lha. 3b thread class right-hand 32 thread quantity per inch passivate except insert surface treated