2b single mounting facility thread class 4.000" overall length 1.210" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series
2b single mounting facility thread class 1.500" overall length 0.680" overall width 48 single mounting facility thread quantity per inch unc single mounting facility thread series
2a single mounting facility thread class 4.000" overall length 1.750" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series
3.950" overall length 0.250" single connection outside diameter 18 single pressure connection thread quantity per inch cylindrical nptf single pressure connection thread series