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NSN 5306-00-302-8637

Externally Relieved Body Bolt

About this product

1.880 inches fastener length, flat chamfer head style, between 0.490 inches and 0.519 inches head diameter, head height: 0.120 inches .

Manufacturer part number 138912 for national stock number 5306003028637.

Datasheet

  • Product description

    Externally Relieved Body Bolt NSN 5306-00-302-8637.

  • MPN or Model

    138912

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.300 inches and 0.330 inches
  • Fastener Length
    1.880 inches
  • Head Style
    Flat chamfer
  • Head Diameter
    Between 0.490 inches and 0.519 inches
  • Head Height
    0.120 inches
  • Shank Unthreaded Hole Diameter
    0.073 inches first hole
  • First Diameter From Head
    Between 0.344 inches and 0.345 inches
  • Second Diameter From Head
    Between 0.341 inches and 0.342 inches
  • Third Diameter From Head
    0.240 inches
  • Fourth Diameter From Head
    Between 0.305 inches and 0.312 inches
  • Fifth Diameter From Head
    0.240 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    Between 0.265 inches and 0.305 inches
  • Distance From Largest Bearing Surface Of Head To End Of Second Diameter
    0.275 inches
  • Distance From Largest Bearing Surface Of Head To End Of Third Diameter
    0.855 inches
  • Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter
    1.850 inches
  • Thread Diameter
    0.312 inches
  • Thready Qty Per Inch (tpi)
    24
  • Hardness Rating
    26.0 rockwell c and 32.0 rockwell c
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    1.760 inches first hole
  • Externally Relieved Body Diameter Quantity
    5
  • Material
    Steel comp 4140 or steel comp 8740
  • Thread Series Designator
    Unf
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Externally Relieved Body Bolt

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

Mechanic Bill explains Externally Relieved Body Bolt

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NSN 5306003028637

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
138912 Curtiss-wright Controls, Inc
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