MIL-S-3950

Technical Characteristics

• Mounting Method

  threaded bushing

• Nonpile-Up Contact Arrangement

  4 pole, double throw, three positions maintained single switch unit

• Overall Width

  1.660 inches maximum

• Thread Quantity Per Inch

  32

• Terminal Type And Quantity

  12 screw

• Actuator Diameter

  0.420 inches nominal

• Hazardous Locations/Environmental Protection

  submersible

• Contact Load Current Rating At Maximum Rated Voltage

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

• Inclosure Type

  fully inclosed

• Maximum Voltage Rating In Volts

  115.0 ac and 28.0 dc

• Overall Length

  1.340 inches maximum

• Mounting Surface To Terminal End Distance

  1.370 inches maximum

• Actuator Position-Locking Relationship

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

• Actuator Style

  round

• Body Length

  1.340 inches maximum

• Body Width

  1.660 inches maximum

• Body Style

  bushing mount

• Body Height

  0.950 inches minimum

• Actuator Height

  1.050 inches nominal

• Overall Height

  2.890 inches nominal

• Specification/Standard Data

  96906-ms27409 government standard

• Thread Class

  2a

• Bushing Length

  0.470 inches nominal

• Nominal Thread Size

  0.469 inches

• ~1

  data on certain environmental and performance

• Test Data Document

  81349-mil-s-3950 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

• Thread Series Designator

  uns

• Actuator Position-Action Relationship

  up position maintained and down position maintained and center position maintained