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NSN 5306-01-278-8499

Externally Relieved Body Bolt

About this product

Between 2.240 inches and 2.260 inches fastener length, double hexagon extended washer head style, between 0.293 inches and 0.313 inches head height, width between flats: 0.312 inches .

Manufacturer part number J644P29C for national stock number 5306012788499.

Datasheet

  • Product description

    Externally Relieved Body Bolt NSN 5306-01-278-8499.

  • MPN or Model

    J644P29C

  • Schedule B
    7508.90.0000 (Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire))
  • NMF (National Motor Freight)
    139820 - Nickel Bolts/nails/nuts/rivets Etc
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.740 inches and 0.820 inches
  • Fastener Length
    Between 2.240 inches and 2.260 inches
  • Head Style
    Double hexagon extended washer
  • Head Height
    Between 0.293 inches and 0.313 inches
  • Width Between Flats
    0.312 inches
  • Extended Washer Diameter
    Between 0.428 inches and 0.448 inches
  • Extended Washer Thickness
    Between 0.060 inches and 0.070 inches
  • First Diameter From Head
    Between 0.222 inches and 0.232 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    Between 1.440 inches and 1.500 inches
  • Thread Diameter
    0.250 inches
  • Features Provided
    Dry film lubricant
  • Thready Qty Per Inch (tpi)
    28
  • Externally Relieved Body Diameter Quantity
    1
  • Material
    Nickel alloy 718
  • Material Specification
    C50tf13 cl-b cagec 07482 mfr ref single material response
  • Precious Material And Location
    silver
  • Precious Material
    Silver
  • Surface Treatment
    Silver
  • Surface Treatment Specification
    Ams2410 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 5306012788499

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
J644P29C General Electric Company
J644P29C General Electric Company
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