MIL-C-38999

Technical Characteristics

• Thread Class

  2a

• Body Style

  3g straight shape, external coupling

• Overall Width

  1.703 inches maximum

• Center To Center Distance Between Mounting Facilities Parallel To Height

  1.375 inches nominal

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Width

  1.375 inches nominal

• Distance From Mounting Shoulder To Front Face

  0.442 inches minimum and 0.447 inches maximum

• Threaded Device Type

  back shell

• Contact Position Arrangement Style

  cqaf 24-61 single mating end

• Polarization Method

  keyway or multiple keyway

• Connector Locking Method

  bayonet pin

• Contact Material

  copper alloy single mating end single contact grouping

• Contact Surface Treatment

  gold single mating end single contact grouping

• Contact Surface Treatment Document And Classification

  mil-g-45204 mil spec single treatment response single mating end single contact grouping

• Shell Surface Treatment Document And Classification

  mil-c-26074 mil spec single treatment response

• Thread Direction

  right-hand

• Overall Length

  0.911 inches minimum and 0.916 inches maximum

• Overall Height

  1.703 inches maximum

• Environmental Protection

  moisture proof and salt water resistant and vibration proof

• Unthreaded Mounting Hole Diameter

  0.142 inches minimum and 0.157 inches maximum

• Mating End Quantity

  1

• Contact Removability

  removable single mating end single contact grouping

• Insert Position In Deg

  345.0

• Shell Type

  solid

• Nominal Thread Length

  0.219 inches

• Thread Quantity Per Inch

  18

• Nominal Thread Size

  1.438 inches

• Terminal Location

  back single mating end single contact grouping

• Terminal Type

  crimp single mating end single contact grouping

• Shell Material

  aluminum alloy

• Shell Surface Treatment

  nickel

• Included Contact Quantity

  61 single mating end single contact grouping

• Included Contact Type

  round pin single mating end single contact grouping

• Precious Material And Weight

  0.061 gold grains, troy

• Precious Material

  gold

• Test Data Document

  81349-mil-c-38999 specification

• Thread Series Designator

  unef

• Specification/Standard Data

  96906-ms27497 government standard

• Precious Material And Location

  contact surfaces gold