Used on spruance class dd (963), ticonderoga class cg (47), torpedo adcap 48, los angeles class ssn (688), deep submergence systems programs (dssp), missle all-weather anti-ship harpoon (agm-84), ac-130a, ac-130h, mc-130h, ec-130e. 40 thread quantity per inch weapon system essential uns thread series
2a thread class right-hand 0.765" overall length 40 thread quantity per inch self locking nut with nylon insert supplied with part passivate surface treated socket w/groove unc thread series
2b single mounting facility thread class 2.531" overall length 1.891" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 2.794" overall length snap or line unef single mounting facility thread series