2b single mounting facility thread class 6.032" overall length 3.940" overall width 32 single mounting facility thread quantity per inch square wafer, panel mount unc single mounting facility thread series
2b single mounting facility thread class 3.125" overall length 1.938" overall width 32 single mounting facility thread quantity per inch switch on rear of relay; switch must break when relay points are made unc single mounting facility thread series
2a single mounting facility thread class 0.375" single mounting facility thread length 4.310" overall length 2.160" overall width circular wafer, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.380" single mounting facility thread length 2.430" overall length 1.620" overall width circular wafer, bushing mount unef single mounting facility thread series