2a single mounting facility thread class 0.437" single mounting facility thread length 3.016" overall length tap, circular, bushing mount unef single mounting facility thread series
Used on virginia class cgn (41), arleigh burke class ddg, kidd class ddg, nimitz class cvn, los angeles class ssn (688), sturgeon class ssn (637), forrestal class cv, spruance class dd (963), ticonderoga class cg (47). weapon system essential
