2b single mounting facility thread class 1.500" overall length 1.460" overall width 40 single mounting facility thread quantity per inch unc single mounting facility thread series
3b single pressure connection thread class 4.375" overall length 3.625" overall width 20 single pressure connection thread quantity per inch two 0.196 in. dia mtg holes unf single pressure connection thread series
2a single mounting facility thread class 0.359" single mounting facility thread length 1.657" overall length 1.125" overall width square wafer, panel mount unef single mounting facility thread series