642AS1144-2

Technical Characteristics

• Center To Center Distance Between Mounting Facilities Parallel To Height

  1.557 inches minimum and 1.567 inches maximum

• Surface Treatment

  cadmium and chromate

• Thread Direction

  right-hand

• Nominal Thread Length

  0.625 inches

• Unthreaded Mounting Hole Diameter

  0.142 inches minimum and 0.157 inches maximum

• Center To Center Distance Between Mounting Facilities Parallel To Width

  1.557 inches minimum and 1.567 inches maximum

• Material

  aluminum

• Thread Quantity Per Inch

  18

• Size Designation

  28

• Overall Width

  1.969 inches minimum and 2.031 inches maximum

• Mounting Facility Type And Quantity

  4 unthreaded hole

• Style Designator

  box/wall mount external thread

• Thread Class

  2a

• Thread Series Designator

  uns

• Overall Height

  1.969 inches minimum and 2.031 inches maximum

• Nominal Thread Size

  1.750 inches

• Overall Length

  0.937 inches nominal