Used on detecting set radar, an/apr-39(v)2; deep submergence systems programs (dssp); aircraft, c-2a (reprocured); sturgeon class ssn (637); helicopter, mh-53e; ticonderoga class cg (47); helicopter, search and rescue, hh-60h; helicopter, advance attack, ah-1w; aircraft, (ac-130h, mc-130h, ec-130e, hc-130). 40 thread quantity per inch weapon system essential uns thread series
