2a single mounting facility thread class 0.250" single mounting facility thread length 1.900" overall length pos 1 is momentary, spring return to pos 2; position 4 is isolated, pull shaft .06 to enter only snap or line unef single mounting facility thread series
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