MIL-C-38999/7

Technical Characteristics

• Thread Class

  2b

• Overall Height

  1.250 inches maximum

• Size Designation

  20 and 21

• Thread Quantity Per Inch

  18

• Material

  aluminum alloy

• Surface Treatment

  nickel, electroless

• Thread Series Designator

  unef

• Thread Direction

  right-hand

• Overall Length

  1.500 inches nominal

• Overall Width

  1.188 inches nominal

• Cable Opening Diameter

  0.437 inches minimum and 0.625 inches maximum

• Cable Opening Quantity

  1

• Mounting Facility Type And Quantity

  1 threaded coupling

• Nominal Thread Size

  1.188 inches

• Style Designator

  4c straight type w/cable clamp

• Test Data Document

  81349-mil-c-38999 specification

• Specification/Standard Data

  81349-mil-c-38999/7 government specification