11HM1 HM Series Hermetically Sealed Basic Switch, Single Pole Double Throw Circuitry, 3 A at 28 Vdc, Integral Lever Actuator, Solder Termination, Military Part Number MS27216-5
1HM19 HM Series Hermetically Sealed Basic Switch, Single Pole Double Throw, Integral Lever Actuator, 4 A at 28 Vdc, Solder Termination, Military Part Number MS27216-1