2a single mounting facility thread class 0.437" single mounting facility thread length 2.591" overall length tap, circular, bushing mount unef single mounting facility thread series
2b thread class right-hand 1.125" overall length 20 thread quantity per inch cadmium surface treated double clamping action open frame type unef thread series
Used on tester firing circuit 30003. 2a single mounting facility thread class 0.437" single mounting facility thread length 2.245" overall length tap, circular, bushing mount unef single mounting facility thread series