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NSN 5306-00-395-7273

Externally Relieved Body Bolt

About this product

Between 0.961 inches and 0.981 inches fastener length, double hexagon w/hole head style, between 0.248 inches and 0.268 inches head height, width between flats: 0.250 inches .

Manufacturer part number 4020647 for national stock number 5306003957273.

Datasheet

  • Product description

    Externally Relieved Body Bolt NSN 5306-00-395-7273.

  • MPN or Model

    4020647

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.215 inches and 0.275 inches
  • Fastener Length
    Between 0.961 inches and 0.981 inches
  • Head Style
    Double hexagon w/hole
  • Head Height
    Between 0.248 inches and 0.268 inches
  • Width Between Flats
    0.250 inches
  • Extended Washer Diameter
    Between 0.365 inches and 0.385 inches
  • Extended Washer Thickness
    0.040 inches
  • First Diameter From Head
    Between 0.244 inches and 0.246 inches
  • Second Diameter From Head
    Between 0.142 inches and 0.146 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    Between 0.556 inches and 0.576 inches
  • Distance From Largest Bearing Surface Of Head To End Of Second Diameter
    Between 0.706 inches and 0.746 inches
  • Thread Diameter
    0.190 inches
  • Thready Qty Per Inch (tpi)
    32
  • Hardness Rating
    30.0 rockwell c and 38.0 rockwell c
  • Externally Relieved Body Diameter Quantity
    2
  • Material
    Steel
  • Material Specification
    Ams 6304 assn standard single material response
  • Surface Treatment
    Chromium
  • Surface Treatment Specification
    Ams 2406 assn standard single treatment response
  • Thread Series Designator
    Unjf
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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 5306003957273

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
4020647 Textron Fastening Systems
4020647 United Technologies Corporation
4020647 Turbo Power & Marine System Inc
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