3b single pressure connection thread class 0.438" single connection inside diameter 3.400" overall length 1.630" overall width 20 single pressure connection thread quantity per inch rectangular unf single pressure connection thread series
2a single mounting facility thread class 0.470" single mounting facility thread length 1.970" overall length 32 single mounting facility thread quantity per inch tap, circular, bushing mount uns single mounting facility thread series
2a single mounting facility thread class 0.417" single mounting facility thread length 1.917" overall length tap, circular, bushing mount unef single mounting facility thread series