Used on jspruance class dd (963), virginia class cgn (41), oliver perry class ffg, forrestal class cv, nimitz class cvn, ticonderoga class cg (47), arleigh burke class ddg, los angeles class ssn (688), tarawa class lha. weapon system essential
2a all threaded stud thread class 1.250" overall length 40 all threaded stud thread quantity per inch disc w/flange unc all threaded stud thread series
2b single mounting facility thread class 4.000" overall length 1.310" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series