2b single mounting facility thread class 3.375" overall length 24 single mounting facility thread quantity per inch round threaded hole shaft tap, circuit selector unc single mounting facility thread series
2b single pressure connection thread class 0.438" single connection inside diameter 5.750" overall length 3.000" overall width rectangular unf single pressure connection thread series
2a single mounting facility thread class 0.375" single mounting facility thread length 2.029" overall length circular wafer, bushing mount unef single mounting facility thread series