2a single mounting facility thread class 0.312" single mounting facility thread length 3.147" overall length 32 single mounting facility thread quantity per inch tap, circular, bushing mount unef single mounting facility thread series
2a single threaded stud thread class 32 single threaded stud thread quantity per inch weapon system essential disc unc single threaded stud thread series
1.717" overall length 0.125" single connection outside diameter 27 single pressure connection thread quantity per inch cylindrical npt single pressure connection thread series