2b single mounting facility thread class 2.000" overall length 2.188" overall width 32 single mounting facility thread quantity per inch tap, square frame unc single mounting facility thread series
3a single threaded bushing thread class 0.430" single threaded bushing thread length 5.100" overall length 20 single threaded bushing thread quantity per inch cylindrical unf single threaded bushing thread series
4.125" overall length 2.469" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series
2a single mounting facility thread class 3.375" overall length 2.469" overall width 24 single mounting facility thread quantity per inch sections 2 tap, circuit selector unc single mounting facility thread series
2b single mounting facility thread class 4.594" overall length 2.813" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series