3318-449

Technical Characteristics

• Thread Series Designator

  unf

• Contact Position Arrangement Style

  57 all mating ends

• Distance From Mounting Shoulder To Front Face

  0.344 inches nominal

• Precious Material And Location

  contact surfaces gold and contact surfaces silver

• Thread Class

  2b

• Terminal Location

  back all mating ends all contact groupings

• Contact Material

  copper alloy all mating ends all contact groupings

• Terminal Type

  solder well all mating ends all contact groupings

• Thread Direction

  right-hand

• Overall Length

  1.329 inches nominal

• Center To Center Distance Between Mounting Facilities Parallel To Height

  0.750 inches nominal

• Nominal Thread Size

  0.312 inches

• Overall Height

  3.063 inches nominal

• Shell Material

  aluminum alloy

• Contact Removability

  nonremovable all mating ends all contact groupings

• Body Style

  straight shape

• Thread Quantity Per Inch

  24

• Shell Surface Treatment

  cadmium

• Contact Maximum Current Rating In Amps

  7.5 all mating ends all contact groupings

• Polarization Method

  1 polarization post

• Mating End Quantity

  2

• Overall Width

  2.313 inches nominal

• Contact Maximum Ac Voltage Rating In Volts

  1500.0 all mating ends all contact groupings

• Shell Type

  solid

• Precious Material

  gold and silver

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Width

  2.062 inches nominal

• Threaded Device Type

  coupling facility

• Connector Locking Method

  screw

• Contact Surface Treatment

  gold all mating ends all contact groupings and silver all mating ends all contact groupings

• Precious Material And Weight

  0.114 gold grains, troy and 0.114 silver grains, troy

• Insert Material

  plastic polytetrafluoroethylene all mating ends