MIL-C-38999

Technical Characteristics

• Polarization Method

  keyway or multiple keyway

• Insert Position In Deg

  0.0

• Shell Type

  solid

• Nominal Thread Length

  0.219 inches

• Missing Contact Type And Quantity

  21 round socket single mating end single contact grouping single accommodated contact type

• Shell Surface Treatment Document And Classification

  mil-c-26074,class 3 or 4,grade b mil spec single treatment response

• Test Data Document

  81349-mil-c-38999 specification

• Thread Series Designator

  unef

• Specification/Standard Data

  96906-ms27656 government standard

• Shell Surface Treatment

  nickel

• Shell Material

  aluminum alloy

• Nominal Thread Size

  1.312 inches

• Thread Quantity Per Inch

  18

• Connector Locking Method

  bayonet pin

• Mating End Quantity

  1

• Distance From Mounting Shoulder To Front Face

  0.785 inches minimum and 0.790 inches maximum

• Unthreaded Mounting Hole Diameter

  0.142 inches minimum and 0.157 inches maximum

• Body Style

  3g straight shape, external coupling

• Thread Class

  2a

• Contact Position Arrangement Style

  axba 23-21 single mating end

• Threaded Device Type

  back shell

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Width

  1.375 inches nominal

• Center To Center Distance Between Mounting Facilities Parallel To Height

  1.375 inches nominal

• Overall Width

  1.688 inches nominal

• Overall Height

  1.688 inches nominal

• Overall Length

  1.290 inches maximum

• Thread Direction

  right-hand