2b single mounting facility thread class 3.000" overall length 1.891" overall width 25 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series
2b single mounting facility thread class 1.719" overall length 1.750" overall width 32 single mounting facility thread quantity per inch rectangular panel mount unc single mounting facility thread series
Used on navstar global positioning system user equipment (ue), aircraft, thunderbolt ii, a-10, aircraft, f-16. 2a thread class right-hand 1.187" overall length 0.680" overall width 28 thread quantity per inch weapon system essential unef thread series