2b single pressure connection thread class 4.906" overall length 1.563" overall width 18 single pressure connection thread quantity per inch rectangular npt single pressure connection thread series
2b single mounting facility thread class 3.125" overall length 2.500" overall width 24 single mounting facility thread quantity per inch tap, circuit selector uns single mounting facility thread series
Used on oliver perry class ffg, kilauea class t-ae 26, blue ridge class lcc-19, forrestal class cv, nimitz class cvn, ship ohio class ssn (trident). all-weather anti-ship harpoon (agm-84) missle. general purpose electronic test equipment (gpete).. weapon system essential axial terminal each end