2a single mounting facility thread class 0.375" single mounting facility thread length 1.490" overall length tap, circular, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 2.937" overall length tap, circular, bushing mount unef single mounting facility thread series
3b all pressure connection thread class 3.750" overall length 20 all pressure connection thread quantity per inch rectangular unf all pressure connection thread series