2b single mounting facility thread class 3.500" overall length 2.500" overall width 24 single mounting facility thread quantity per inch unc single mounting facility thread series
Used on virginia class cgn (41), spruance class dd (963), sturgeon class ssn (637), ticonderoga class cg (47), forrestal class cv, los angeles class ssn (688), nimitz class cvn, oliver perry class ffg, kidd class ddg. weapon system essential
