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NSN 5306-01-272-0377

Externally Relieved Body Bolt

About this product

3.125 inches fastener length, hexagon head style, between 0.271 inches and 0.291 inches head height, width between flats: between 0.741 inches and 0.752 inches .

Manufacturer part number 176C2141-3 for national stock number 5306012720377.

Datasheet

  • Product description

    Externally Relieved Body Bolt NSN 5306-01-272-0377.

  • MPN or Model

    176C2141-3

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 1.172 inches and 1.234 inches
  • Fastener Length
    3.125 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.271 inches and 0.291 inches
  • Width Between Flats
    Between 0.741 inches and 0.752 inches
  • Hole Diameter
    Between 0.062 inches and 0.078 inches
  • First Diameter From Head
    Between 0.410 inches and 0.420 inches
  • Distance From Largest Bearing Surface Of Head To End Of First Diameter
    Between 1.891 inches and 1.953 inches
  • Thread Diameter
    0.500 inches
  • Hole Quantity
    1
  • Hole Type
    Drilled
  • Features Provided
    Finished head
  • Thready Qty Per Inch (tpi)
    20
  • Hole Configuration Style
    Hexagon flats
  • Externally Relieved Body Diameter Quantity
    1
  • Material
    Iron alloy 660
  • Material Specification
    Ams5731 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 5306012720377

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
176C2141-3 General Dynamics-ots, Inc.
Stock Check
Availability for this item was last checked on 02/15/23. The quantities and conditions available at the time were:
  • NE: 44