MIL-C-38999

Technical Characteristics

• Thread Class

  2a

• Thread Direction

  right-hand

• Overall Length

  1.289 inches maximum

• Overall Height

  1.312 inches minimum and 1.332 inches maximum

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Width

  1.062 inches nominal

• Threaded Device Type

  back shell

• Contact Removability

  removable

• Nominal Thread Length

  0.219 inches

• Operating Temp Rating

  m65.0 deg celsius minimum and 175.0 deg celsius maximum

• Contact Material

  copper alloy

• Contact Surface Treatment

  gold

• Shell Surface Treatment

  cadmium

• Shell Surface Treatment Document And Classification

  qq-p-416 fed spec single treatment response

• Precious Material

  gold

• Shell Material

  aluminum alloy

• Included Contact Quantity

  8

• Included Contact Type

  round pin

• Precious Material And Location

  contact surfaces gold

• Precious Material And Weight

  0.008 gold grains,troy

• Test Data Document

  81349-mil-c-38999 specification

• Thread Series Designator

  unef

• Specification/Standard Data

  96906-ms27656 government standard

• Overall Width

  1.312 inches minimum and 1.332 inches maximum

• Environmental Protection

  moisture proof and salt water resistant and vibration proof and corrosion resistant and dust resistant and fuel resistant and fungus resistant and humidity resistant and oil resistant and shock resistant and thermal shock resistant and vibration resistant

• Unthreaded Mounting Hole Diameter

  0.123 inches minimum and 0.138 inches maximum

• Center To Center Distance Between Mounting Facilities Parallel To Height

  1.062 inches nominal

• Distance From Mounting Shoulder To Front Face

  0.815 inches minimum and 0.820 inches maximum

• Mating End Quantity

  1

• Polarization Method

  keyway or multiple keyway

• Insert Position In Deg

  30.0 and b95.0 and b132.0 and b232.0 and b260.0

• Shell Type

  solid

• Connector Locking Method

  bayonet pin

• Features Provided

  scoopproof design

• Thread Quantity Per Inch

  20

• Nominal Thread Size

  0.938 inches

• Terminal Location

  back

• Insert Material

  plastic epoxy

• Contact Surface Treatment Document And Classification

  mil-g-45204 mil spec single treatment response

• Terminal Type

  crimp