MIL-DTL-3950

Technical Characteristics

• Hazardous Locations/Environmental Protection

  submersible

• Inclosure Type

  fully inclosed

• Overall Length

  1.340 inches maximum

• Mounting Method

  threaded bushing

• Overall Width

  2.890 inches nominal

• Actuator Position-Action Relationship

  down position maintained and up position maintained and center position maintained

• Criticality Code Justification

  feat

• Special Features

  weapon system essential

• Nonpile-Up Contact Arrangement

  2 pole, double throw, both positions maintained single switch unit

• Overall Height

  0.910 inches maximum

• Thread Quantity Per Inch

  32

• Maximum Voltage Rating In Volts

  60.0 ac and 28.0 dc

• Bushing Length

  0.450 inches minimum and 0.490 inches maximum

• Contact Load Current Rating At Maximum Rated Voltage

  15.000 amperes resistive ac and 5.000 amperes lamp dc and 12.000 amperes inductive dc and 20.000 amperes resistive dc and 15.000 amperes inductive ac and 4.000 amperes lamp ac

• Actuator Style

  round

• Body Length

  1.340 inches maximum

• Terminal Type And Quantity

  6 screw

• Body Width

  0.910 inches maximum

• End Item Identification

  submarine communications and antenna systems; aircraft: t-2, f-111, delta dart f-106, ov-10a and the u-2 airframe; submarine interior communication system

• Body Height

  1.090 inches minimum and 1.130 inches maximum

• Body Style

  bushing mount

• Actuator Height

  1.030 inches minimum and 1.070 inches maximum

• Thread Class

  2a

• Actuator Diameter

  0.400 inches minimum and 0.440 inches maximum

• Nominal Thread Size

  0.469 inches

• Thread Series Designator

  uns

• Actuator Position-Locking Relationship

  down position no locking action and up position no locking action and center position locked in

• ~1

  data on certain environmental and performance r

• Test Data Document

  81349-mils3950 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type