2b single mounting facility thread class 2.656" overall length 2.500" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series
0.375" single pressure connection thread length 1.625" overall length 18 single pressure connection thread quantity per inch cylindrical ptf-sae short single pressure connection thread series
2b single pressure connection thread class 0.250" single connection inside diameter 2.000" single pressure connection thread length 5.188" overall length 2.875" overall width 20 single pressure connection thread quantity per inch rectangular unf single pressure connection thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 2.591" overall length tap, circular, bushing mount unef single mounting facility thread series