Used on an/apm-465 test set,radar. 2a single mounting facility thread class 0.417" single mounting facility thread length 2.789" overall length tap, circular, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.375" single mounting facility thread length circular wafer, bushing mount unef single mounting facility thread series
3a single pressure connection thread class 0.550" single pressure connection thread length 2.500" overall length 0.4375" single connection outside diameter cylindrical unf single pressure connection thread series