2a single mounting facility thread class 0.440" single mounting facility thread length 2.740" overall length switch body sealed at terminals to prevent internal liquid flux contamination tap, circular, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 3.122" overall length tap, circular, bushing mount unef single mounting facility thread series
2b thread class right-hand 1.438" overall length 18 thread quantity per inch passivate surface treated double clamping action open frame type unef thread series