1-321-802-5889

NSN 5306-01-617-3813

Close Tolerance Hex Head Bolt

About this product

As8879;short thread;patch type finish;0.398 grip diameter;160 ksi ftu.

Manufacturer part number NAS6204P5 for national stock number 5306016173813.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-617-3813.

  • MPN or Model

    NAS6204P5

  • 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 Direction
    Right-hand
  • Fastener Length
    Between 0.667 inches and 0.697 inches
  • Head Style
    Hexagon
  • Head Diameter
    Between 0.249 inches and 0.250 inches
  • Width Between Flats
    Between 0.429 inches and 0.439 inches
  • Locking Feature
    Self-locking fastener
  • Grip Diameter
    0.398 inches
  • Grip Length
    Between 0.302 inches and 0.322 inches
  • Thready Qty Per Inch (tpi)
    28
  • Part Name Assigned By Controlling Agency
    Bolt, tension, hex head, close tolerance
  • Material
    Steel comp 4140 or steel comp 4340 or steel comp 8740
  • Material Specification
    Mil-dtl-18240 military specification single material response locking feature
  • Thread Series Designator
    Unjf
  • Specification Data
    80205-nas6203thru6220 manufacturers specification
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Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Mechanic Bill explains Close Tolerance Hex Head Bolt

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NSN 5306016173813

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS6204P5 National Aerospace Standards
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