3a single pressure connection thread class 0.550" single pressure connection thread length 2.500" overall length 0.438" single connection outside diameter cylindrical unf single pressure connection thread series
2a single mounting facility thread class 0.470" single mounting facility thread length 2.183" overall length circular wafer, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 2.660" overall length shaft protrudes from rear of switch body tap, circular, bushing mount unef single mounting facility thread series