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NSN 5306-01-656-2123

Close Tolerance Hex Head Bolt

About this product

Hexagon head style, 0.156 inches head height, between 0.492 inches and 0.502 inches width between flats, grip diameter: between 0.3110 inches and 0.3120 inches .

Manufacturer part number NAS6605D45 for national stock number 5306016562123.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-656-2123.

  • MPN or Model

    NAS6605D45

  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.469 inches
  • Head Style
    Hexagon
  • Head Height
    0.156 inches
  • Width Between Flats
    Between 0.492 inches and 0.502 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Shank Unthreaded Hole Diameter
    0.076 inches first hole
  • End Application
    1520-01-457-5179
  • Thread Diameter
    0.3125 inches
  • Thready Qty Per Inch (tpi)
    24
  • Part Name Assigned By Controlling Agency
    Bolt, hex head
  • Material
    Steel comp 4140
  • Surface Treatment
    Cadmium
  • Thread Series Designator
    Unjf
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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 5306016562123

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS6605D45 National Aerospace Standards
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