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NSN 5306-01-020-2439

Externally Relieved Body Bolt

About this product

3.250 inches fastener length, hexagon head style, between 0.310 inches and 0.320 inches head height, width between flats: between 0.742 inches and 0.750 inches .

Manufacturer part number SPE16N25 for national stock number 5306010202439.

Datasheet

  • Product description

    Externally Relieved Body Bolt NSN 5306-01-020-2439.

  • MPN or Model

    SPE16N25

  • 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
    2a
  • Thread Direction
    Right-hand
  • Thread Length
    0.750 inches
  • Fastener Length
    3.250 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.310 inches and 0.320 inches
  • Width Between Flats
    Between 0.742 inches and 0.750 inches
  • First Diameter From Head
    Between 0.496 inches and 0.500 inches
  • Second Diameter From Head
    Between 0.415 inches and 0.425 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    0.250 inches
  • Distance From Largest Bearing Surface Of Head To End Of Second Diameter
    1.500 inches
  • Thread Diameter
    0.500 inches
  • Thready Qty Per Inch (tpi)
    20
  • Externally Relieved Body Diameter Quantity
    2
  • Part Name Assigned By Controlling Agency
    Navy special project
  • Material
    Steel
  • Material Specification
    En165, fscm k0378 mfr ref single material response
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Dtd904, fscm k0378 mfr ref single treatment response
  • Thread Series Designator
    Unf
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 5306010202439

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
SPE16N25 Rolls-royce Airlines
SPE16N25 Rolls-royce Inc
SPE16N25 Rolls-royce Military Aero Engines
SPE16N25 Naval Inventory Control Point
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