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NSN 5306-00-807-6331

Close Tolerance Hex Head Bolt

About this product

1.628 inches fastener length, hexagon head style, between 0.125 inches and 0.140 inches head height, width between flats: between 0.430 inches and 0.439 inches .

Manufacturer part number NAS654V21 for national stock number 5306008076331.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-00-807-6331.

  • MPN or Model

    NAS654V21

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.316 inches
  • Fastener Length
    1.628 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.125 inches and 0.140 inches
  • Width Between Flats
    Between 0.430 inches and 0.439 inches
  • Grip Diameter
    Between 0.2490 inches and 0.2495 inches
  • Thread Diameter
    0.250 inches
  • Grip Length
    1.312 inches
  • Thready Qty Per Inch (tpi)
    28
  • Surface Finish
    63.0 microinches grip
  • Material
    Titanium alloy
  • Material Specification
    Nas621 assn standard single material response
  • Thread Series Designator
    Unf
  • Specification Data
    80205-nas694 professional/industrial association standard
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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 5306008076331

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS654V21 National Aerospace Standards
10114373 Nimikkeistokeskus Ncb Finland
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