D38999/20FD18PN

Technical Characteristics

• Threaded Device Type

  back shell and coupling facility

• Shell Surface Treatment

  nickel

• Overall Width

  31.0 millimeters nominal

• Included Contact Type

  round pin single mating end single contact grouping

• Mounting Slot Length

  4.34 millimeters minimum and 4.59 millimeters maximum

• Mating End Quantity

  1

• Precious Material And Location

  contact surfaces gold and contact surfaces silver

• Nominal Thread Length

  0.219 inches

• Included Contact Quantity

  18 single mating end single contact grouping

• Contact Position Arrangement Style

  15-18 single mating end

• Overall Height

  31.0 millimeters nominal

• Environmental Protection

  moisture proof and salt water resistant and vibration proof

• Polarization Method

  keyway or multiple keyway

• Precious Material And Weight

  0.018 gold grains, troy and 0.018 silver grains, troy

• Contact Material

  copper alloy single mating end single contact grouping

• ~1

  data on certain environmental and performanc

• Test Data Document

  81349-dod-c-38999 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type

• Shell Surface Treatment Document And Classification

  mil-c-26074 mil spec single treatment response

• Contact Surface Treatment

  gold single mating end single contact grouping and silver single mating end single contact grouping

• Thread Direction

  right-hand

• Nominal Thread Size

  0.812 inches and 1.000 inches

• Connector Locking Method

  externally threaded shell

• Shell Material

  aluminum alloy

• Contact Removability

  removable single mating end single contact grouping

• Insert Position In Deg

  0.0

• Thread Quantity Per Inch

  20 and 10

• Center To Center Distance Between Mounting Facilities Parallel To Height

  24.61 millimeters nominal

• Mounting Slot Width

  3.20 millimeters minimum and 3.35 millimeters maximum

• Terminal Location

  back single mating end single contact grouping

• Body Style

  straight shape, external coupling w/backshell

• Thread Series Designator

  unef and double stub

• Shell Type

  solid

• Specification/Standard Data

  81349-dod-c-38999/20 government specification

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Width

  24.61 millimeters nominal

• Precious Material

  gold and silver

• Thread Class

  2a

• Overall Length

  31.5 millimeters maximum

• Distance From Mounting Shoulder To Front Face

  20.9 millimeters maximum

• Terminal Type

  crimp single mating end single contact grouping