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NSN 5306-01-127-7583

Close Tolerance Hex Head Bolt

About this product

Between 2.512 inches and 2.542 inches fastener length, hexagon head style, between 0.438 inches and 0.453 inches head height, width between flats: between 1.239 inches and 1.252 inches .

Manufacturer part number NAS1264-30D for national stock number 5306011277583.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-127-7583.

  • MPN or Model

    NAS1264-30D

  • Schedule B
    8109.90.0000 (Zirconium and articles thereof nesoi)
  • NMF (National Motor Freight)
    136500 - Metal NOI/metal Alloys NOI
  • Unit Weight (Est.)
    0.5 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.627 inches and 0.677 inches
  • Fastener Length
    Between 2.512 inches and 2.542 inches
  • Head Style
    Hexagon
  • Head Height
    Between 0.438 inches and 0.453 inches
  • Width Between Flats
    Between 1.239 inches and 1.252 inches
  • Grip Diameter
    Between 0.8735 inches and 0.8740 inches
  • Shank Unthreaded Hole Diameter
    0.141 inches first hole and 0.151 inches first hole
  • Thread Diameter
    0.875 inches
  • Grip Length
    Between 1.865 inches and 1.885 inches
  • Thready Qty Per Inch (tpi)
    14
  • Distance From Head Largest Bearing Surface To Shank Hole Center
    2.368 inches first hole and 2.418 inches first hole
  • Surface Finish
    63.0 microinches grip
  • Material
    Titanium alloy uns r54520
  • Material Specification
    Nas621 assn standard single material response
  • Thread Series Designator
    Unf
  • Specification Data
    80205-nas1264 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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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS1264-30D National Aerospace Standards
10115784 Nimikkeistokeskus Ncb Finland
Stock Check
Availability for this item was last checked on 11/13/24. The quantities and conditions available at the time were:
  • NE: 63
  • NS: 3