2a power takeoff facility bushing thread class 40 power takeoff facility bushing thread quantity per inch unc power takeoff facility bushing thread series
2b single mounting facility thread class 1.938" overall length 1.688" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series
Used on spruance class dd (963); forrestal class cv; kidd class ddg; sturgeon class ssn (637); ticonderoga class cg (47); los anageles class ssn (688); virginia class cgn (41); arleigh burke class ddg; nimitz class cvn. weapon system essential
2a single mounting facility thread class 0.375" single mounting facility thread length 1.875" overall length 1.297" overall width circular wafer, bushing mount unef single mounting facility thread series