2a mounting facility stud thread class 40 mounting facility stud thread quantity per inch 7/32 in. lg pin mounted in hole of plate unc mounting facility stud thread series
5.000" overall length 5.656" overall width 18 single pressure connection thread quantity per inch incl 0.250 in. ventilator hole in box. adapter for 0.250 in. npt male connection npt single pressure connection thread series
5.000" overall length 5.656" overall width 18 single pressure connection thread quantity per inch incl 0.250 in. vent hole in. box, adapter for 44 in. npt male connection npt single pressure connection thread series