MIL-C-38999

Technical Characteristics

• Thread Class

  2a

• Thread Direction

  right-hand

• Overall Length

  1.290 inches maximum

• Overall Height

  1.688 inches nominal

• Overall Width

  1.688 inches nominal

• Center To Center Distance Between Mounting Facilities Parallel To Height

  0.687 inches nominal

• Distance From Mounting Shoulder To Front Face

  0.785 inches minimum and 0.790 inches maximum

• Threaded Device Type

  back shell

• Insert Position In Deg

  26.0

• Nominal Thread Length

  0.219 inches

• Iii Operating Temp Rating

  -65.0 deg celsius minimum and 200.0 deg celsius maximum

• Nominal Thread Size

  1.312 inches

• Insert Material

  plastic epoxy single mating end

• Shell Surface Treatment Document And Classification

  qq-p-416 fed spec single treatment response

• Definitive Government Spec/Std Reference

  ms27656t23b35ab

• Manufacturers Code

  81349

• Manufacturers Code

  96906

• Non-Definitive Government Spec/Std Reference

  mil-c-38999

• Body Style

  3g straight shape, external coupling

• 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

  0.142 inches minimum and 0.157 inches maximum

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Width

  0.687 inches nominal

• Mating End Quantity

  1

• Contact Position Arrangement Style

  efal 23-35 single mating end

• Polarization Method

  keyway or multiple keyway

• Shell Type

  solid

• Connector Locking Method

  bayonet pin

• Thread Quantity Per Inch

  18

• Shell Material

  aluminum alloy

• Shell Surface Treatment

  cadmium

• (Non-Core Data) Missing Contact Type And Quantity

  100 round socket

• Test Data Document

  81349-mil-c-38999 specification

• Thread Series Designator

  unef

• Specification/Standard Data

  96906-ms27656 government standard