2a single mounting facility thread class 0.312" single mounting facility thread length 1.750" overall length 2.219" overall width circular wafer, bushing mount unef single mounting facility thread series
2b second mounting facility thread class right-hand second mounting facility 3.250" overall length 3.090" overall width 32 second mounting facility thread quantity per inch unc second mounting facility thread series
steel, cadmium plated, 2.875 in. w, 3.062 in. h, four no. 10 /0.190 in./ -32 thd cres screws on 1.875 in. by 1.938 in. mtg centers, marked reset, incl rubber gasket for push-button seal
2a single mounting facility thread class 0.312" single mounting facility thread length 1.719" overall length 1.609" overall width circular wafer, bushing mount unef single mounting facility thread series
2b single mounting facility thread class 4.125" overall length 2.312" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series