MIL-C-85049

Technical Characteristics

• Thread Series Designator

  unc

• Size Designation

  18

• Overall Length

  1.391 inches minimum and 1.421 inches maximum

• Mounting Facility Type And Quantity

  4 clinch nut

• Center To Center Distance Between Mounting Facilities Parallel To Width

  1.059 inches minimum and 1.065 inches maximum

• Thread Direction

  right-hand

• Nominal Thread Size

  0.112 inches

• Thread Quantity Per Inch

  40

• Surface Treatment

  chromate

• Supplementary Features

  primer coat required

• Thread Class

  3b

• Specification/Standard Data

  81349-mil-c-85049/95 government specification

• Special Features

  0.750 min cutout & 0.780 max cutout on one side

• Overall Height

  0.106 inches minimum and 0.166 inches maximum

• Center To Center Distance Between Mounting Facilities Parallel To Length

  1.059 inches minimum and 1.065 inches maximum

• Style Designator

  square shape

• Overall Width

  1.391 inches minimum and 1.421 inches maximum

• Material

  aluminum alloy

• ~1

  data on certain environmental and performanc

• Test Data Document

  81349-mil-c-85049 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