2a single mounting facility thread class 0.375" single mounting facility thread length 2.656" overall length 2.188" overall width unef single mounting facility thread series
2b single pressure connection thread class 0.438" single connection inside diameter 0.250" single pressure connection thread length 5.188" overall length 2.812" overall width 20 single pressure connection thread quantity per inch 0.250 in. dia vent hole in case rectangular unf single pressure connection thread series
0.438" single connection inside diameter 5.188" overall length 2.812" overall width 18 single pressure connection thread quantity per inch rectangular npt single pressure connection thread series