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NSN 5306-01-315-4889

Externally Relieved Body Bolt

About this product

Surface on grip and bearing surface of head 32 micrinches; threads and washer face coated pwa 550-3 agec 77445.

Manufacturer part number ST2520-09 for national stock number 5306013154889.

Datasheet

  • Product description

    Externally Relieved Body Bolt NSN 5306-01-315-4889.

  • MPN or Model

    ST2520-09

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.820 inches and 0.923 inches
  • Fastener Length
    Between 0.928 inches and 0.948 inches
  • Head Style
    Double hexagon w/hole
  • Head Height
    Between 0.373 inches and 0.393 inches
  • Width Between Flats
    0.4375 inches
  • Extended Washer Diameter
    Between 0.552 inches and 0.572 inches
  • Extended Washer Thickness
    0.090 inches
  • First Diameter From Head
    Between 0.343 inches and 0.353 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    Between 0.025 inches and 0.108 inches
  • Thread Diameter
    0.375 inches
  • Thready Qty Per Inch (tpi)
    24
  • Externally Relieved Body Diameter Quantity
    1
  • Material
    Titanium alloy uns r56400
  • Material Specification
    Ams 7461 assn standard single material 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 5306013154889

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
ST2520-09 United Technologies Corporation
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