3HF1

Technical Characteristics

• Nonpile-Up Contact Arrangement

  1 pole, double throw, double break/double make, one position momentary single switch unit

• Actuator Movement

  0.078 pretravel inches maximum and 0.219 overtravel inches minimum and 0.004 differential inches maximum

• Criticality Code Justification

  feat

• Overall Width

  1.000 inches nominal

• Special Features

  weapon system essential

• Terminal Type And Quantity

  4 screw

• Housing Height

  1.781 inches nominal

• Inclosure Type

  fully inclosed

• Housing Width

  1.000 inches nominal

• Actuator Free Position Height

  1.719 inches nominal

• Switch Release Force

  10.0 ounces minimum

• Actuator Style

  round

• Housing Length

  2.625 inches nominal

• Body Style

  hole mounted

• Overall Length

  3.453 inches nominal

• Mounting Method

  unthreaded hole

• Overall Height

  2.828 inches nominal

• Maximum Voltage Rating In Volts

  250.0 ac

• End Item Identification

  aircraft, stratofortress b-52; aircraft, stratolifter c-135

• Contact Load Current Rating At Maximum Rated Voltage

  5.000 amperes resistive ac

• Switch Actuating Force

  22.0 ounces minimum and 52.0 ounces maximum

• Center To Center Distance Between Housing Mounting Facilities Parallel To Length

  1.000 inches nominal