NSN: 5935-00-426-7303

Technical Characteristics

• Overall Width

  1.610 inches minimum and 1.640 inches maximum

• Size Designation

  21

• Style Designator

  square shape

• Nominal Thread Size

  0.112 inches

• Mounting Facility Type And Quantity

  4 clinch nut

• Surface Treatment

  anodized

• Center To Center Distance Between Mounting Facilities Parallel To Length

  1.249 inches minimum and 1.251 inches maximum

• Material

  aluminum alloy

• Thread Series Designator

  unc

• Overall Height

  0.085 inches nominal

• Thread Direction

  right-hand

• Overall Length

  1.610 inches minimum and 1.640 inches maximum

• Thread Class

  2b

• Center To Center Distance Between Mounting Facilities Parallel To Width

  1.249 inches minimum and 1.251 inches maximum