2a single mounting facility thread class 0.400" single mounting facility thread length 3.397" overall length tap, circular, bushing mount unef single mounting facility thread series
2a single threaded stud thread class 1.742" overall length 20 single threaded stud thread quantity per inch plug unc single threaded stud thread series
2b all threaded hole thread class 4.968" overall length 32 all threaded hole thread quantity per inch packing gland on wire leads cylindrical w/flange unc all threaded hole thread series
Used on sturgeon class ssn (637), ticonderoga class cg (47), powhatan class t-atf 166, kidd class ddg, forrestal class cv, arleigh burke class ddg, virginia class cgn (41), spruance class dd (963), nimitz class cvn, los angeles class ssn (688).. 3.188" overall length 1.563" overall width weapon system essential npt single pressure connection thread series
