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NSN 5306-01-499-1965

Close Tolerance Hex Head Bolt

About this product

Between 0.433 inches and 0.463 inches fastener length, flat countersunk head style, 0.381 inches head diameter, grip diameter: between 0.1885 inches and 0.1895 inches .

Manufacturer part number NAS7403-2 for national stock number 5306014991965.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-499-1965.

  • MPN or Model

    NAS7403-2

  • Schedule B
    7616.10.6000 (Threaded fasteners of aluminum)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    Between 0.284 inches and 0.362 inches
  • Fastener Length
    Between 0.433 inches and 0.463 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    0.381 inches
  • Grip Diameter
    Between 0.1885 inches and 0.1895 inches
  • Point Diameter
    Between 0.181 inches and 0.184 inches
  • Point Style
    Flat
  • Thread Diameter
    0.190 inches
  • Grip Length
    Between 0.084 inches and 0.159 inches
  • Thready Qty Per Inch (tpi)
    32
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Aluminum alloy
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, type ii, class 2 federal specification single treatment response
  • Thread Series Designator
    Unf
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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 5306014991965

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS7403-2 National Aerospace Standards
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