2a thread class right-hand 0.620" overall length 18 thread quantity per inch surface black nickel surface treated straight shape, solid external threaded coupling uns thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 3.310" overall length 1.312" overall width circular wafer, bushing mount unef single mounting facility thread series
Used on los angeles class ssn (688); communications terminal, satellite an/gsc-39(v)1; missile, all-weather antiship, harpoon (agm-84); ticonderoga class cg (47); sturgeon class ssn (637); support equipment, b-52 aircraft; helicopter, search and rescue, hh-60h; virginia class cgn (41); helicopter, carrier based asw, sh-60f; helicopter, uscg search and rescue, hh-60j. weapon system essential
Used on rforrestal class cv; spruance class dd (963); virginia class cgn (41); missile, all-weather antiship, harpoon (agm-84); sturgeon class ssn (637); los angeles class ssn (688); nimitz class cvn; ticonderoga class cg (47). weapon system essential