2a single mounting facility thread class 1.560" overall length 1.250" overall width 48 single mounting facility thread quantity per inch unc single mounting facility thread series
2b single mounting facility thread class 2.250" overall length 1.500" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series
0.540" all pressure connection thread length 2.312" overall length 1.000" overall width 20 all pressure connection thread quantity per inch rectangular unf all pressure connection thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 4.044" overall length tap, circular, bushing mount unef single mounting facility thread series